Combine like terms:

Question

-3x2 + 2x – 4x2 – 9 + 6x – 2x2 + 8

Answer 1

-3x^2 + 2x – 4x^2 – 9 + 6x – 2x^2 + 8

"Combining like terms" means adding up the terms that contain x^2, x and just constants separately. Then write the result as __x^2 + __x + (constant)

In this problem, the constants add up to 8-9 = -1. You do the others.