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What are the roots of the following polynomial equation? (x+5)(x+2i)(x-5i)=0Answers in...

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babyryan95 | Honors

Posted July 14, 2012 at 3:01 AM via web

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What are the roots of the following polynomial equation? (x+5)(x+2i)(x-5i)=0

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cgrant2 | High School Teacher | Valedictorian

Posted July 14, 2012 at 3:28 AM (Answer #1)

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Set each equation equal to zero

(x+5) = 0 ----> x= -5 

(x+2i) = 0 ----> x= -2i 

(x-5i) = 0 -----> x = 5i 

The roots of the equation are -5,-2i, and 5i 

 

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