Question

Evaluate 9a4 b - 15a3 b2 ÷ 3a2 b

Answer 1

Step-by-step explanation:

$\frac{ 9 {a}^{4} b - 15 {a}^{3} {b}^{2} }{3 {a}^{2}b } \\ = \frac{{3 {a}^{2}b }({3 {a}^{2}b } - 5a)}{ \:{3 {a}^{2}b } } \\ = {3 {a}^{2}b } - 5a$