Question

simplify the expression.
$7x^3 + 3 - 5(x^3 - 4)$
$2x^3 - 17$
$2x^3 - 1$
$2x^3 + 23$
$25x^3$

Explanation:

Step1: Distribute the -5 term

$7x^2 + 3 -5x^2 + 20$

Step2: Combine like $x^2$ terms

$(7x^2 -5x^2) + 3 + 20 = 2x^2 + 3 + 20$

Step3: Combine constant terms

$2x^2 + (3 + 20) = 2x^2 + 23$

Answer:

$2x^2 + 23$