Answer:
B. 1.-1,-2
Step-by-step explanation:

Substitute g(x)=0

Move the expression to the left

Factor out -x^2 from the expression

Factor out (x+2) from the expression

When the product of the factor equals 0, at least one factor is 0


Solve for x

Answer:
10) C
11) A
Step-by-step explanation:
C = 2m^2 + m
D = 2 - 6m + 2m^2
2C = 2(2m^2 + m) = 4m^2+2m
2D = 2(2-6m+2m^2) = 4-12m+4m^2
2C - 2D =
4m^2+2m-(4-12m+4m^2) =
4m^2+2m-4+12m-4m^2 =
0m^2 + 14m -4 =
14m - 4