SOLUTION: Find all the roots : x^4-30x^+125=0

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Question 635502: Find all the roots : x^4-30x^+125=0
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Assume you meant:

x^4-30x^2+125=0

(x^2 - 25)(x^2-5) = 0

x^2 = 25

x = ± 5

x^2 = 5

 x = ±sqrt%285%29