Question

-9x² - 4 + 6x + 11x² - 7x

Answer 1

2x² - x - 4

Step-by-step explanation

To solve this we have to add like terms:

`-9x^2-4+6x+11x^2-7x`

Like terms are those that have x with the same power:

`(-9x^2+11x^2)+(6x-7x)-4=2x^2-x-4`