Question

What is the sum of (x^2+6x-5) + (2x^2+15)

Answer 1

3x^2 + 6x + 10

Explanation:

Because we're adding it, it doesn't matter if we just take out the parenthesis.

X^2 + 2x^2 gives us 3x^2.

6x stays the same.

-5 + 15 gives us 10.

3x^2 + 6x + 10