Question

How do you add `(6x^2-x-4) + (2x^2-x-5)`?

Answer 1

`8x^2-2x-9`

Explanation:

The parenthesis are really unnecessary in this problem. We just need to combine our like terms:

The `x^2` terms with each other, the `x` terms with each other, and the constants. Doing this, we get:

`8x^2-2x-9`

The key realization when we're doing problems like these is to see if we have like terms, and if we do, combine them.

Hope this helps!