Answer:
cubic expression.
x3 - 2x2 - 4x + 8
Explanation:
(x2 − 4) (x − 2)
first we will multiply both parenthesis
(x2 * x) + (x2 * -2) + (-4 * x) + (-4 * -2)
then you simplify the parenthesis
(x3) + (-2x2) + (-4x) + (8)
then we eliminate the parenthesis
x3 - 2x2 - 4x + 8
and finally we have an cubic expression