Question

HELP!!
Which of the following statements about the work shown below is true?
(x^2+2x+6)(2x^2-4x-1)
=x^2(2x^2-4x-1)+2x(2x^2-4x-1)+6(2x^2-4x-1)
=2x^4-4x^3-x^2+2x2-4x+1+12x^2-8x-6
=2x^4-4x^3+13x^2-12x-5

A.
The distributive property was not applied correctly in the first step.
B.
The distributive property was not applied correctly in the second step.
C.
Like terms were not combined correctly.
D.
No mistakes were made finding the product.

Answer 1

\[2x(2x^2-4x-1)=4x^3-8x^2-2x\neq2x^2-4x+1\]