Question

How do you add `(3x^2 + 7) - (x^2 - 6x - 4)`?

Answer 1

`(3x^2 + 7) - (x^2 - 6x - 4)`

`=3x^2 + 7 - x^2 + 6x + 4`

We group the Like Terms

`= (3x^2 - x^2) + 6x + (7 + 4)`

`= color(green)(2x^2 + 6x + 11`