Question

Need help! The product of the polynomials (2ab + b) and (a2 – b2) is 2a3b-2ab3+a2b-b3 . If this product is multiplied by (2a + b), the result is a polynomial with terms.

Answer 1

The result is polynomial:
=$4a^{4}b - 4 a^{2} b^{3} + 2 a ^{3} b - 2ab^{3} + 2 a ^{3}b^{2} - 2 ab^{4} + a ^{2} b^{2} -b^{4}$