Question

For 5 and 6 add or subtract

5. (m^2-m+3) + (m-1)

A. m^2-m-2
B. m^2+2***
C. m^2-2
D. m^2+m+2

6. (5x^2+x-3) - (-2x^3+4)

A. -2x^3+5x^2+x-7
B. -2x^3+5x^2+x+1
C. 2x^3+5x^2+x+7***
D. 2x^3+5x^2+x+1

Answer 1

Can you help

Answer 2

The first is right. I'm not sure about the second.

Answer 3

There must be a typo.
It is

2x^3+5x^2+x-7

So, (C) could be right, if it has the typo.