Question

Simplify the expression below.

4x(3x − 7) − 19x2

A. -35x2
B. -31x2 − 28x
C. -7x2 − 28x
D. -7x2 − 7

Answer 1

Simplify the expression -4x2(3x − 7).

-12x3 + 28x2

Explanation:

Answer 2

Answer: OPTION C.

Explanation:

Given the following expression:

`4x(3x- 7) - 19x^2`

You can simplify this expression applying these steps:

First step: You must apply Distributive property:

`=12x^2-28x-19x^2`

Second step: You need to add the like terms.

Then, you get:

`=-7x^2-28x`

You can observe that this simplified expression matches with the expression provided in Option C.