Question

Find the difference.

(5x2 + 2x + 11) - (7 + 4x - 2x2)
A.
9 - 2x - 2x2
B.
3x2 - 2x + 4
C.
3x2 + 6x + 4
D.
7x2 - 2x + 4

Answer 1

D. 7x2 - 2x + 4

Explanation:

5x2 + 2x + 11 - 7 - 4x +2x2

7x2 + 2x + 11 - 7 - 4x

7x2 - 2x + 11 - 7

7x2 - 2x + 4

Answer 2

`\text{Solve:}\\\\(5x^2 + 2x + 11) - (7 + 4x - 2x^2)\\\\5x^2+2x+11-7-4x+2x^2\\\\7x^2+2x+11-7-4x\\\\7x^2-2x+11-7\\\\\boxed{7x^2-2x+4}`