Question

Helpppp Plsssss!!! Thanks

Answer 1

B.
`-5x(x^(2) +2x+3)`

Explanation:

`-5x^(3) -10x^(2) -15x`

Apply exponent rule

`-5x^(2) x-10xx-15x`

Rewrite 15 as 5*3

Rewrite 10 as 5*2

=
`5x^(2) x-5*2xx-5*3x`

Factor out common term -5x

=
`-5x(x^(2) +2x+3)`

Answer 2

It's B

Explanation:

-5x(x^2)=-5x^3

-5x(2x)= -10x^2

-5x(3)= -15x^2

All together: -5x^3 - 10x^2 - 15x