Question

How do you combine `(8x^3 - 8x - 4) - (-16x^6 + 9x3 - 6x2)`?

Answer 1

I found:
`16x^6-x^3+6x^2-8x-4`

Explanation:

You can start eliminating the brackets but careful...the second one has a minus sign in front of it so you must change all the signs inside!
`8x^3-8x-4+16x^6-9x^3+6x^2=`
now you can add together similar terms (=with the same "type" of letters):
`=16x^6-x^3+6x^2-8x-4`