Question

Simplify. (x – 4)(x2+ 5x + 2)

x3 + x2 – 18x – 8

x3 + x2 + 22x – 8

x3 + 9x2 – 18x – 8

x3 + 9x2 + 22x – 8

Answer 1

Expand and simplify

Answer 2

\[
x \left(x^2+5 x+2\right)=x^3+5 x^2+2 x
\]

Answer 3

\[
-4 \left(x^2+5 x+2\right)=-4 x^2-20 x-8
\]

Answer 4

Add the above two to get
\[
(x-4) \left(x^2+5 x+2\right)=x^3+x^2-18 x-8
\]

Answer 5

The first choice.

Answer 6

thank you so much

Answer 7

yw