Two roots of a 3-degree polynomial equation are 5 and -5. Which of the following cannot be the third root of the equation? a. 5 b. 5i c. 0 d. -5 e. -5i

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asked Dec 8, 2017 124k views

3 votes

Two roots of a 3-degree polynomial equation are 5 and -5. Which of the following cannot be the third root of the equation?

a. 5
b. 5i
c. 0
d. -5
e. -5i

Mathematics
high-school

Michael Victor asked

by Michael Victor

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2 Answers

1 vote

Answer:

5i or -5i since there would be at least 4 roots

Answer B and E

Explanation:

Laughedelic answered Dec 10, 2017

by Laughedelic

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5 votes

Hello,

5i or -5i since there would be at least 4 roots

Answer B and E

Danqi Wang answered Dec 15, 2017

by Danqi Wang

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