SOLUTION: Find all real solutions of the equation. {{{ x^4-8x^2-9=0 }}}

SOLUTION: Find all real solutions of the equation. {{{ x^4-8x^2-9=0 }}}

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Question 784576: Find all real solutions of the equation.

Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
Factoring,
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has no real solutions, so we work from the other two factors
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