Question

answer fast please...​

Answer 1

Answer:

-4

Step-by-step explanation:

f(x)= 2x+2x³

f(-1)= 2(-1)+2(-1)³

= -2 +2(-1)

= -2-2

= -4

Hope It Helps

Answer 2

Answer:

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Step-by-step explanation:

f(x)=2x+2x³        substitute x=-1

f(-1)=2×-1+2×(-1)³

    =-2+2×-1

    =-4

hope it helps

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