4. (5x^2 - 4x -1) - (-4x^2 -4) (1 point)

Question

-9x^2 - 8x - 1
9x^2 - 4x + 3
x^2 - 4x - 3
9x^2 + 4x - 3

Answer 1

9x^2 - x - 3

Answer 2

That's not one of the answers

Answer 3

I apologize. I made a mistake in my calculation. The correct answer is:

9x^2 - 4x - 3