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Evaluate 4x^3 + 2 for x
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2 votes
Evaluate 4x^3 + 2 for x

Evaluate 4x^3 + 2 for x-example-1
User Teejay
by
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2 Answers

3 votes
4(-1)^3 + 2 = 4(-1) + 2
= -4 + 2
= -2
User JosefAssad
by
7.9k points
3 votes
Work:4x^3+2
X=-1
Plug in x
4 (-1)^3+2
4 (-1)+2
-4+2
-2
Answer: -2 (D)
Check your work: -2=4x^3+2
-2 both sides
-4=4x^3
÷4 both sides
-1=x^3
(Square root by 3) both sides
X=-1

Answer is correct
User Marcothesane
by
7.7k points
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