SOLUTION: please help me solve this {{{ x^4+5x^2-36=0 }}}

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Question 323465: please help me solve this +x%5E4%2B5x%5E2-36=0+
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
x^4+5x^2-36=0
(x+9)(x-4)=0
x+9=0
x=-9 ans.
x-4=0
x=4 ans.