Question

How do you combine `(–2x^4 – 3x^2) – (–9x^2 + 4x – 4)`?

Answer 1

`-2x^4+6x^2-4x+4`

Explanation:

Remove the brackets

`(-2x^4-3x^2)-(-9x^2+4x-4)`

`=-2x^4-3x^2+9x^2-4x+4`

`-2x^4+6x^2-4x+4`