SOLUTION: i would like to know the steps to solve the equation x^4-3x^2-4=0 i know the answer is supposed to be (-2,2) but i would like to understand how it is solved so i can solve a simila

Algebra ->  Functions -> SOLUTION: i would like to know the steps to solve the equation x^4-3x^2-4=0 i know the answer is supposed to be (-2,2) but i would like to understand how it is solved so i can solve a simila      Log On


   



Question 595516: i would like to know the steps to solve the equation x^4-3x^2-4=0 i know the answer is supposed to be (-2,2) but i would like to understand how it is solved so i can solve a similar problem myself
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
i would like to know the steps to solve the equation x^4-3x^2-4=0
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It can be factored.
x%5E4-3x%5E2-4+=+%28x%5E2-4%29%2A%28x%5E2%2B1%29+=+0
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x%5E2+-+4+=+0
x = -2, +2
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x%5E2+%2B+1+=+0
x = -i, +i