Question

How do you simplify `(4r^{2}-3r+2)-(-r^{2}-3r)`?

Answer 1

`5r^2 + 2`

Explanation:

`(4r^2-3r+2)-(-r^2-3r)`

The first thing we need to do is distribute the `-` to everything in its parenthesis:
`4r^2-3r+2+r^2+3r`

And now we just combine like terms and simplify:
`4r^2 + r^2 = 5r^2`

`-3r + 3r = 0`

So the simplified answer is:
`5r^2 + 2`

Hope this helps!