Question

verify the identity (a+b)3=a3+b3+3a2b+3ab2

Answer 1

Answer:

(a+b)^3=a^3+b^3+3a^2b+3ab^2

Step-by-step explanation:

(a+b)^3 =(a+b)^2(a+b)

=a^2+2ab+b^2(a+b)

=a^3+b^3+3a^2b+3ab^2

Therefore, (a+b)^3=a^3+b^3+3a^2b+3ab^2