Question

How do you combine like terms in `(2x ^ { 2} - 4x - 6) + ( x ^ { 2} - 3x + 4)`?

Answer 1

`3x^2 -7x -2`

Explanation:

`(2x^2-4x-6) + (x^2-3x+4)`
`= 2x^2 + x^2 -4x -3x -6 +4`
`= 3x^2 -7x -2`