Question

Choose the correct simplification of the expression (7x − 3)(4x^2 − 3x − 6).

a. 28x^3 − 33x^2 − 33x − 18
b. 28x^3 33x^2 − 33x 18
c. 28x^3 − 51x^2 − 33x 18
d. 28x^3 − 33x^2 − 33x 18

Answer 1

answer is d

Explanation:

Answer 2

distribute
(7x)(4x^2-3x-6)+(-3)(4x^2-3x-6)=
28x^3-21x^2-42x-12x^2+9x+18=
28x^3-21x^2-12x^2-42x+9x+18=
28x^3-33x^2-33x+18

D is the correct answer