Question

How do you subtract `(6x^3 – 2x^2 + 4)-(2x^3 + 4x^2 – 5)`?

Answer 1

`(6x^3 – 2x^2 + 4)-(2x^3 + 4x^2 – 5)`

`=6x^3 – 2x^2 + 4-2x^3 - 4x^2 + 5`

Next, we group the Like terms:

`=(6x^3 - 2x^3) - (2x^2 -4x^2) +(4+5)`

`= color(green)(4x^3 - 6x^2 + 9`