Find the difference. (4x 2 - 6x + 8) - (3x 2 - 6x + 2)
x^2 + 6
7x^2 - 12x - 6
x^2 + 12x + 6
x^2 - 12x - 6

A. x^2 + 6

Step-by-step explanation:

(4x^2 - 6x + 8) - (3x^2 - 6x + 2) =

The first set of parentheses is unnecessary, so just remove it.

= 4x^2 - 6x + 8 - (3x^2 - 6x + 2)

To remove the second set of parentheses, change the sign of each term inside.

= 4x^2 - 6x + 8 - 3x^2 + 6x - 2

Now combine like terms.

= x^2 + 6

For this case we must find the difference of the following polynomials:

Taking into account that:

We have: