Question

Choose the correct simplification of the expression −4x2(6x − 5x2 − 5).

a. 20x^4 + 24x^3 + 20x^2
b. −9x^4 + 2x^3 − 9x^2
c. 20x^4 − 24x^3 + 20x^2
d.−20x^4 + 24x^3 − 20x^2

Answer 1

To simplify this, we need to distribute the coefficient:
$- 24 {x}^{3} + 20 {x}^{4} + 20 {x}^{2}$
The answer is C.