Question

How do you simplify `(x^2+ 3x) - (x^2+ 2x + 3)`?

Answer 1

The answer is `x-3`.

Explanation:

`(x^2+3x)-(x^2+2x+3)`

Remove the unnecessary brackets.
`=x^2+3x-(x^2+2x+3)`

When there is a "-" sign in front of the bracket, change the sign of term in the bracket.
`=x^2+3x-x^2-2x-3`

Eliminate the opposites.
`=3x-2x-3`

Collect the like terms.
`=x-3`

Hope this helped, it might be a little confusing.