Answer:
A
Step-by-step explanation:
f(x) = 2x
f(-4) = 2(-4) = -8
Answer:
C)
Step-by-step explanation:

Binomial should have two terms. Five degree binomial means highest degree of the binomial should be 5
I believe it should be A.
Answer:

Step-by-step explanation:
Complete question

Required
Solve for x
We have:

Collect like terms

Multiply through by 

Make x the subject
