Question

Help me too understand this stuff I’m so confused

Answer 1

Third One

Explanation:

All you have to do is subtract the ones with the same terms. Fo instance, you can't substract something that is squared with something that is cubed.

x^3 stays the same since there's no other term cubed

2x^2-3x^2= -1x^2

5-7=-2

So x^3-x^2-2