SOLUTION: Find the zeros of g(x) = (x^4) - (21x^2) -100

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Question 365581: Find the zeros of g(x) = (x^4) - (21x^2) -100
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi, 

Find the zeros of 

g(x) = (x^4) - (21x^2) -100

(x^2 -25)(x^2 + 4) = 0

(x^2 -25)=0

x^2 = 25

x = 5 or  x = -5

(x^2 + 4) = 0

x^2 = -4

x = -2i or x = 2i