Which of the following is a root of the polynomial shown below? f(x)=x^3-4x^2-11x+30 A. 6 B. 0 C. 1 D. -3

asked Jul 4, 2017 85.0k views

4 votes

Which of the following is a root of the polynomial shown below?

f(x)=x^3-4x^2-11x+30

A. 6
B. 0
C. 1
D. -3

by Gkemp

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5 votes

Answer:

B.1

Explanation:

apexs

7.7k points

5 votes

So if we go like this:
f(0)=30
f(1)=16
f(6)=36
the answer is D.-3. because
f(-3)=-27-36+33+30=0
I hope this can help you a lot

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