Question

How do you combine `(17x^2 + 7x - 14) - (-6x^2 - 5x - 18)`?

Answer 1

`(17x^2 + 7x - 14) - (-6x^2 - 5x - 18)`

`17x^2 + 7x - 14 + 6x^2 + 5x + 18`

Here, we will first group like terms:
`color(blue)(17x^2 +6x^2) + color(red)(7x+5x) -color(green)(14+18)`

`=color(blue)(23x^2) + color(red)(12x) +color(green)(4)`