If a = x and b = -y, what is the first term in the expansion of (x - y)^n?

nC0 * x^n

nC1 * x^(n-1) * y

nC0 * (-y)^n

nC1 * (-y)^(n-1) * x

Video Explanation

Watch Video Solution

Keep Practising

Students who asked this also explored

Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.

Q1.

What is the coefficient of x^2 in the expansion of (2x + 3)^3?

Q2.

In the expansion of (a + b)^4, how many terms will be present?

Q3.

What is the general term in the expansion of (x + y)^n?

Q4.

What is the value of (x + 1)^2 when x = 3?