SOLUTION: use factoring to solve the polynomial equation 8x^4 -72x^2 = 0

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Question 830024: use factoring to solve the polynomial equation
8x^4 -72x^2 = 0
Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
8x^4 -72x^2 = 0
8x^2(x^2 - 9) = 0
8x^2(x + 1)(x - 1) = 0
So x = 0 or -1 or 1