Attempt the question, check the explanation, and continue with similar questions to build confidence before exams.
x^6 + 6x^5y + 15x^4y^2 + 20x^3y^3 + 15x^2y^4 + 6xy^5 + y^6
x^6 + 5x^5y + 10x^4y^2 + 10x^3y^3 + 5x^2y^4 + xy^5 + y^6
x^6 + 4x^5y + 6x^4y^2 + 4x^3y^3 + 2x^2y^4 + xy^5 + y^6
x^6 + 5x^5y + 15x^4y^2 + 20x^3y^3 + 20x^2y^4 + 5xy^5 + y^6
Continue with nearby questions to strengthen the same chapter concept while you still have the context fresh in mind.