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

1 Answer
Apr 1, 2018

#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!