Question

Solve a²b³-(ab)² if a=-2 and b=3​

Answer 1

The answer is 72.

Explanation:

You have to put in the values of a and b into the expressions :

`{a}^(2) {b}^(3) - {(ab)}^(2)`

`let \: a \: = - 2 \\ let \: b = 3`

`{( - 2)}^(2) * {(3)}^(3) - {( - 2 * 3)}^(2)`

`= 4 * 27 - { (- 6)}^(2)`

`= 108 - 36`

`= 72`