Question

evaluate.
$(-9)^3 = \square$
$(-4)^2 = \square$

Explanation:

Step1: Expand the first expression

$(-9)^3 = (-9) \times (-9) \times (-9)$

Step2: Calculate first expression

$(-9) \times (-9) = 81$; $81 \times (-9) = -729$

Step3: Expand the second expression

$(-4)^2 = (-4) \times (-4)$

Step4: Calculate second expression

$(-4) \times (-4) = 16$

Answer:

$(-9)^3 = -729$
$(-4)^2 = 16$