Simplify this expression.

12x2 (3x4 - 2x)

Select one of the options below as your answer:

A. 36x6 - 2x

B. 36x6 - 24x3

C. 36x8 - 2x

D. 36x8 - 24x3

Apply the distributive property by multiplying 12x^2 with each of those terms. Also apply the law of exponents that when both terms are multiplies, their exponents are added.

12x^2 (3x^4 - 2x)

36x^6 - 24x^3

Thus the answer is B. 36x6 - 24x3