Question

Help Solve???????????

Answer 1

-m^2 - 9m + 3 (the third one)

Explanation:

separate the terms and group them with their equivalents (integers:inetgers, variables: variables, etc.) like so:

4m^2 & -5m^2 = -m^2

-8m & -m = -9m

12 & -9 = 3

add them all together to get the expression -m^2-9m+3

Answer 2

the answer is -m^2 - 7m + 21