High School

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Select the correct answer.

Simplify the expression [tex]-4x^2(3x-7)[/tex].

A. [tex]-12x^3 - 28x^2[/tex]
B. [tex]-12x^3 - 28[/tex]
C. [tex]-12x^3 + 28x^2[/tex]
D. [tex]-12x^3 + 28[/tex]

Answer :

We begin with the expression

[tex]$$-4x^2(3x-7).$$[/tex]

The first step is to apply the distributive property:

[tex]$$-4x^2(3x) + (-4x^2)(-7).$$[/tex]

Multiplying the terms gives:

[tex]$$-12x^3 + 28x^2.$$[/tex]

Thus, the simplified expression is

[tex]$$-12x^3 + 28x^2.$$[/tex]

Since this matches the third option, the correct answer is option C.

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