Question

1. (m^2 - m - 4) + (m - 5)

a) m^2 - 2m + 9
b) m^2 + 2m - 9
c) m^2 - 2m - 9
d) m^2 - 9

2. (4x + 4) + (3x + 2 + 1)

a) 7x + 3
b) x + 7
c) 7x + 7
d) 8x + 6

Answer 1

Add like terms:
m^2 - m - 4
+m - 5
Add: m^2 0 -9 = m^2 - 9

Answer 2

I got -9 + m^2 but that can't be right.

Answer 3

-9 + m^2 and m^2 - 9 are one and the same and that is the correct answer.

Answer 4

Oh okay, so it would be D. :)

Answer 5

Yes.

Answer 6

For number two it's 7x + 7?

Answer 7

Yes.

Answer 8

Thanks for the help!