The polynomial equation x^3-4x^2+2x+10=x^2-5x-3 has complex roots 3+-2i What is the other root? -3 1 3 10

asked Jan 20, 2018 220k views

4 votes

The polynomial equation x^3-4x^2+2x+10=x^2-5x-3 has complex roots 3+-2i What is the other root?

-3
1
3
10

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1 vote

A cubic equation can only have at most 3 roots. You already have 3 roots. x = 3 ,x = -2i , and x = 2i

MrRobboto answered Jan 26, 2018

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