Question

How do you simplify `(14x^2 + 13x + 12) - (7x^2 + 20x + 4)`?

Answer 1

`(14x^2+13x+12)-(7x^2+20x+4)`

`14x^2+13x+12-7x^2-20x-4`

`=(14x^2-7x^2)+(13x-20x)+(12-4)`

`=(14-7)x^2+(13-20)x+(12-4)`

`=7x^2-7x+8`