Question

Perform the operations, multiply, and simplify.-a^3b (3a^2 b^5 - ab^4 - 7a ^2 b)

Answer 1

$-a^3b (3a^2 b^5 - ab^4 - 7a ^2 b) \\ \\ =-3a^5b^6-(-a^4b^5)-(-7a^5b^2) \\ \\ =-3a^5b^6+a^4b^5+7a^5b^2$

Answer 2

$-a^3b (3a^2 b^5 - ab^4 - 7a ^2 b)=\\ -3a^5b^6+a^4b^5+7a^5b^2$