Question

Solve a²b³-(ab)² if a=-2 and b=3​

Answer 1

Answer:

The answer is 72.

Step-by-step explanation:

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

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

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

${( - 2)}^{2} \times {(3)}^{3} - {( - 2 \times 3)}^{2}$

$= 4 \times 27 - { (- 6)}^{2}$

$= 108 - 36$

$= 72$