Question

–3a2 (ab – 2b2) – 3b(4ab + b).​

Answer 1

$- 3 {a}^{2} (ab - 2 {b}^{2} ) - 3b(4ab + b)$

$= - 3 {a}^{3} b + 6 {a}^{2} {b}^{2} - 2a {b}^{2} - 3 {b}^{2}$

Answer 2

Ans:

-3a^3b + 6a^2b^2 - 12ab^2 - 3b^2

Step-by-step explanation:

–3a2 (ab – 2b2) – 3b(4ab + b)

-3a^3b + 6a^2b^2 - 12ab^2 - 3b^2