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Curriculum-aligned learning paths for students in Classes 6-12.

CBSE
Class 9
Mathematics
Ganita Manjari
Exploring Algebraic Identities
Question Bank

Question Bank - Exploring Alge...

Practice Hub

Question Bank: Exploring Algebraic Identities

Structured practice

Question Bank - Exploring Algebraic Identities

Q1.

What is the expanded form of (a + b)²?

Single Answer MCQ
Q-00168625
View explanation
Q2.

Calculate the value of (3 + 4)² using the identity.

Single Answer MCQ
Q-00168627
View explanation
Q3.

If a = 5 and b = -2, what is the value of (a + b)²?

Single Answer MCQ
Q-00168629
View explanation
Q4.

In which case would (a + b)² = a² + b² not hold true?

Single Answer MCQ
Q-00168630
View explanation
Q5.

Which of the following represents the area of a square with side (a + b)?

Single Answer MCQ
Q-00168632
View explanation
Q6.

If (x + 3)² = x² + 6x + 9, what value does x take in (x + 3)²?

Single Answer MCQ
Q-00168634
View explanation
Q7.

Which identity directly involves an application of the distributive property?

Single Answer MCQ
Q-00168636
View explanation
Q8.

What is the result of substituting a = -1 and b = 2 into (a + b)²?

Single Answer MCQ
Q-00168638
View explanation
Q9.

Which visual representation can you use to show (a + b)²?

Single Answer MCQ
Q-00168640
View explanation
Q10.

If a = 2 and b = 5, which of the following is true?

Single Answer MCQ
Q-00168642
View explanation
Q11.

For what values of a and b does the equation (a + b)² = 0 hold true?

Single Answer MCQ
Q-00168643
View explanation
Q12.

What is the correct form of (a - b)²?

Single Answer MCQ
Q-00168644
View explanation
Q13.

Which observation validates the identity for negative values of a and b?

Single Answer MCQ
Q-00168645
View explanation
Q14.

If we derive (a + b)² using the distributive property, what is the first step?

Single Answer MCQ
Q-00168646
View explanation
Q15.

What geometric shapes help in visualizing the identity (a + b)²?

Single Answer MCQ
Q-00168647
View explanation
Q16.

What is the value of (a + b)² according to the algebraic identity?

Single Answer MCQ
Q-00168648
View explanation
Q17.

Which of the following represents the identity for the difference of squares?

Single Answer MCQ
Q-00168649
View explanation
Q18.

If x = 3, what is the value of (x + 2)²?

Single Answer MCQ
Q-00168650
View explanation
Q19.

What identity is represented by a² - 2ab + b²?

Single Answer MCQ
Q-00168651
View explanation
Q20.

Which identity can be correctly used to factor x² - 16?

Single Answer MCQ
Q-00168652
View explanation
Q21.

If a = 5 and b = 3, what is the result of (a + b)² - a² - b²?

Single Answer MCQ
Q-00168653
View explanation
Q22.

What is the result of (a + b)² + (a - b)²?

Single Answer MCQ
Q-00168654
View explanation
Q23.

The expression 3x² + 6x can be factored using which algebraic identity?

Single Answer MCQ
Q-00168655
View explanation
Q24.

Which of the following is a correct transformation of (x + 1)²?

Single Answer MCQ
Q-00168656
View explanation
Q25.

What is the factorization of the expression x² + 6x + 9?

Single Answer MCQ
Q-00168657
View explanation
Q26.

If a = 2 and b = -3, what is the value of (a + b)²?

Single Answer MCQ
Q-00168658
View explanation
Q27.

Which identity is used to factor x² - 18x + 81?

Single Answer MCQ
Q-00168659
View explanation
Q28.

Which expression represents the same value as (x - 5)(x + 5)?

Single Answer MCQ
Q-00168660
View explanation
Q29.

Identify the factors of 4x² - 12x + 9.

Single Answer MCQ
Q-00168661
View explanation
Q30.

What is the sum of roots of the equation x² - 10x + 25 = 0?

Single Answer MCQ
Q-00168662
View explanation
Q31.

Apply the identity to factor 9y² + 24y + 16.

Single Answer MCQ
Q-00168663
View explanation
Q32.

What is the simplified expression for (x + 4)(x - 4)?

Single Answer MCQ
Q-00168664
View explanation
Q33.

Factor the expression y² - 10y + 25.

Single Answer MCQ
Q-00168665
View explanation
Q34.

If a = 1, b = 2, c = 3, what is the value of a² + b² + c² - 2(ab + ac + bc)?

Single Answer MCQ
Q-00168666
View explanation
Q35.

What is the factorization of 25x² - 30x + 9?

Single Answer MCQ
Q-00168667
View explanation
Q36.

How would you factor the expression 4x² - 9y²?

Single Answer MCQ
Q-00168668
View explanation
Q37.

If x² - 10x + 25 is factored, which of the following is a factor?

Single Answer MCQ
Q-00168669
View explanation
Q38.

Factor the expression 36x² + 12x + 1.

Single Answer MCQ
Q-00168670
View explanation
Q39.

Which of the following is the result of factoring 16a² - 24ab + 9b²?

Single Answer MCQ
Q-00168671
View explanation
Q40.

Determine the factors of 49x² - 36.

Single Answer MCQ
Q-00168672
View explanation
Q41.

What is the factored form of x² + 12x + 36?

Single Answer MCQ
Q-00168673
View explanation
Q42.

How can the expression 100t² - 64 be factored?

Single Answer MCQ
Q-00168674
View explanation
Q43.

What are the factored forms of the polynomial 16x² - 16?

Single Answer MCQ
Q-00168675
View explanation
Q44.

What is the factored form of the expression x² + 5x + 6?

Single Answer MCQ
Q-00168705
View explanation
Q45.

Which of the following expressions can be factored as (x - 4)(x + 1)?

Single Answer MCQ
Q-00168706
View explanation
Q46.

For the quadratic x² + 8x + 15, what are the values of a and b in the factored form (x + a)(x + b)?

Single Answer MCQ
Q-00168707
View explanation
Q47.

Which of the following is the correct factorization of x² - 9?

Single Answer MCQ
Q-00168708
View explanation
Q48.

What factors can be decomposed to solve x² + 12x + 36?

Single Answer MCQ
Q-00168709
View explanation
Q49.

Factor the expression x² - 5x - 14.

Single Answer MCQ
Q-00168710
View explanation
Q50.

Which equation corresponds to the factoring of x² + 10x + 21?

Single Answer MCQ
Q-00168711
View explanation
Q51.

How can you factor the expression 2x² + 8x?

Single Answer MCQ
Q-00168712
View explanation
Q52.

What is the product of (x + 3)(x - 2)?

Single Answer MCQ
Q-00168713
View explanation
Q53.

Which of the following expressions equates to (x + 4)(x - 5)?

Single Answer MCQ
Q-00168714
View explanation
Q54.

Which of the following correctly factors the expression x² + 3x - 18?

Single Answer MCQ
Q-00168715
View explanation
Q55.

What expression represents the factored form of 3x² - 12?

Single Answer MCQ
Q-00168716
View explanation
Q56.

What is the factored form of the polynomial x² - 6x + 8?

Single Answer MCQ
Q-00168717
View explanation
Q57.

If a² - 49 = (a - 7)(a + 7), what type of polynomial is this?

Single Answer MCQ
Q-00168718
View explanation
Q58.

What is the expanded form of (a + b)²?

Single Answer MCQ
Q-00168719
View explanation
Q59.

Using the identity (x - y)(x² + xy + y²), what is the result?

Single Answer MCQ
Q-00168720
View explanation
Q60.

What is the expression for (a - b)³ in expanded form?

Single Answer MCQ
Q-00168721
View explanation
Q61.

If a = 5 and b = 3, what is the value of (a + b)²?

Single Answer MCQ
Q-00168722
View explanation
Q62.

Which of the following is another form of (x + y + z)²?

Single Answer MCQ
Q-00168723
View explanation
Q63.

If (a + b + c)² is expanded, how many terms will it contain?

Single Answer MCQ
Q-00168724
View explanation
Q64.

Using the identity (a + b)² - (a - b)², what is the simplified form?

Single Answer MCQ
Q-00168725
View explanation
Q65.

Which identity represents the expansion of (x + y + z)(x² + y² + z² - xy - xz - yz)?

Single Answer MCQ
Q-00168726
View explanation
Q66.

What is the value of (x + y)³ when x = 2 and y = 3?

Single Answer MCQ
Q-00168727
View explanation
Q67.

How can you rewrite (2n - 5m)³ in terms of a and b?

Single Answer MCQ
Q-00168728
View explanation
Q68.

What is the product of (x - y)(x² + xy + y²)?

Single Answer MCQ
Q-00168729
View explanation
Q69.

What is a common application of the identity (a + b)²?

Single Answer MCQ
Q-00168730
View explanation
Q70.

If a = 3 and b = 4, calculate (a - b)² using the identity.

Single Answer MCQ
Q-00168731
View explanation
Q71.

What polynomial form does (a + b + c)³ expand to?

Single Answer MCQ
Q-00168732
View explanation
Q72.

Using the identity a² - b² = (a - b)(a + b), what can you say about (x² - 4)?

Single Answer MCQ
Q-00168733
View explanation
Q73.

What is the value of (a + b)³ when a = 1 and b = 2?

Single Answer MCQ
Q-00168734
View explanation
Q74.

What is the area of a rectangle with sides (x + 5) and (x + 2)?

Single Answer MCQ
Q-00168735
View explanation
Q75.

Which of the following represents the identity for (a - b)²?

Single Answer MCQ
Q-00168736
View explanation
Q76.

If a rectangle has dimensions (x + 8) and (x + 1), what is the expanded form of its area?

Single Answer MCQ
Q-00168737
View explanation
Q77.

If (x + 2)² = x² + 4 + 4x, what is the value of (x + 2)² when x = 3?

Single Answer MCQ
Q-00168738
View explanation
Q78.

Factorise the expression x^2 + 11x + 30 using algebra tiles.

Single Answer MCQ
Q-00168739
View explanation
Q79.

What is the expanded form of (x + 5)(x - 5)?

Single Answer MCQ
Q-00168741
View explanation
Q80.

When factorising x^2 - 5x - 6, which is the correct factorization?

Single Answer MCQ
Q-00168740
View explanation
Q81.

Which identity applies when expanding (x + 3)^2?

Single Answer MCQ
Q-00168742
View explanation
Q82.

Using the identity a³ + b³ = (a + b)(a² - ab + b²), what is 2³ + 3³?

Single Answer MCQ
Q-00168743
View explanation
Q83.

Which of the following is a correct derivation of (a + b)(a² - ab + b²)?

Single Answer MCQ
Q-00168744
View explanation
Q84.

What is the result of factorising 12x^2 + 16xy?

Single Answer MCQ
Q-00168745
View explanation
Q85.

What is the factorization of 4x² - 12x + 9?

Single Answer MCQ
Q-00168746
View explanation
Q86.

Using algebra tiles, which expression can be created from the tiles showing (2x + 3)(x + 4)?

Single Answer MCQ
Q-00168747
View explanation
Q87.

What will be the result of (m + n)³?

Single Answer MCQ
Q-00168748
View explanation
Q88.

What identity represents the difference of squares?

Single Answer MCQ
Q-00168749
View explanation
Q89.

Factor the expression 16s² + 25t² - 40st.

Single Answer MCQ
Q-00168750
View explanation
Q90.

If a rectangle has dimensions (x + 2) and (x - 2), what is its area?

Single Answer MCQ
Q-00168751
View explanation
Q91.

Which of the following equations is an identity?

Single Answer MCQ
Q-00168752
View explanation
Q92.

What is the correct factorization of x^2 + 9x + 14?

Single Answer MCQ
Q-00168753
View explanation
Q93.

How can you express a³ - b³?

Single Answer MCQ
Q-00168754
View explanation
Q94.

Using algebra tiles, which product results from (x + 3)(x - 3)?

Single Answer MCQ
Q-00168755
View explanation
Q95.

What is the expanded form of (2a - 3b)(2a + 3b)?

Single Answer MCQ
Q-00168756
View explanation
Q96.

Which expression is equivalent to 3(x + 4) + 2(x + 5)?

Single Answer MCQ
Q-00168757
View explanation
Q97.

Using the identity (x - y)(x + y) = x² - y², what is 5² - 3²?

Single Answer MCQ
Q-00168758
View explanation
Q98.

What would be the correct expansion of (2x + 4)(x - 1)?

Single Answer MCQ
Q-00168759
View explanation
Q99.

What does the expression x^2 - 16 factor into?

Single Answer MCQ
Q-00168760
View explanation
Q100.

When simplifying the expression (x + 1)(x + 1), what is the resulting polynomial?

Single Answer MCQ
Q-00168761
View explanation
Q101.

What is the simplified form of (x^2 - 4)/(x - 2)?

Single Answer MCQ
Q-00168762
View explanation
Q102.

Simplify the expression (3x^2 + 6x)/(3x).

Single Answer MCQ
Q-00168763
View explanation
Q103.

What is the simplified form of (2x^2 - 8)/(x - 4)?

Single Answer MCQ
Q-00168764
View explanation
Q104.

If the expression (5x^2 + 15x)/(x + 3) is simplified, what remains?

Single Answer MCQ
Q-00168765
View explanation
Q105.

Which of the following rational expressions can be simplified directly?

Single Answer MCQ
Q-00168766
View explanation
Q106.

What is the result of simplifying (x^2 - 9)/(x - 3)?

Single Answer MCQ
Q-00168767
View explanation
Q107.

When simplifying the expression (6x)/(2x + 6), which is a correct step?

Single Answer MCQ
Q-00168768
View explanation
Q108.

What is the simplified form of (x^2 - x - 6)/(x^2 - 4)?

Single Answer MCQ
Q-00168769
View explanation
Q109.

Identify the common mistake when simplifying (x^2 - 4)/(x - 2).

Single Answer MCQ
Q-00168770
View explanation
Q110.

What remains after simplifying (x^2 + 5x + 6)/(x + 2)?

Single Answer MCQ
Q-00168771
View explanation
Q111.

Which expression is equivalent to (x^2 - 9)/(x + 3)?

Single Answer MCQ
Q-00168772
View explanation
Q112.

Simplifying (8x^3 - 8x)/(4x) gives:

Single Answer MCQ
Q-00168773
View explanation
Q113.

Which expression requires factoring before simplifying? (x^2 - 1)/(x + 1)

Single Answer MCQ
Q-00168774
View explanation
Q114.

What is the simplified form of (4x^2 + 12x)/(4x)?

Single Answer MCQ
Q-00168775
View explanation
Q115.

Which is NOT a rational expression?

Single Answer MCQ
Q-00168776
View explanation
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