Question

pls help me friends it's urgent​ pls​.

Answer 1

Answer:

12a²b + 15ab²

= 3ab(4a+5b)

Hope it helps you!!!!

Answer 2

Answer:

$12 {a}^{2} b \: + 15a {b}^{2} \\ taking \: 3ab \: common \\ 3ab(4a + 5b)$

There you go :)