M(x)=x^2-3x N(x)=x-5 MN(-1)= ? A.18 B.-20 C.-22 D. -24

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bluphi

High School

M(x)=x^2-3x
N(x)=x-5

MN(-1)= ?

A.18
B.-20
C.-22
D. -24

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(Based on todays review)

edifante

Answer:
d. -24
Step-by-step explanation:
M(-1)=(-1)^2-3(-1)
M(-1)=1+3
M(-1)=4
N(-1)=-1-5
N(-1)=-6
MN(-1)=(4)(-6)
MN(-1)=-24
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