Question

Simplify the following expression.

(2x + 7) + (-4x2 + 6x + 3)

A. 4x2 + 8x + 4
B. -4x2 + 4x + 10
C. 4x + 10
D. -4x2 + 8x + 10

Answer 1

Since before each set of parentheses there is no negative sign, just drop the parentheses.
Then combine like terms.

Answer 2

(2x + 7) + (-4x2 + 6x + 3)
First step: drop the parentheses to get this:
2x + 7 + -4x2 + 6x + 3
Now combine like terms.

Answer 3

idk how

Answer 4

Like terms are terms with the same variable part (letters). You can combine terms with x together. You can combine terms without x together. You can't combine terms with x with terms without x together.

Answer 5

so it would be d?

Answer 6

Yes.