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Mathematics 8 Online
OpenStudy (anonymous):

x^4-20x^2=64=0 find the real or imginary solutions by factoring

OpenStudy (anonymous):

Is that supposed to be +64?

OpenStudy (anonymous):

If so, then simplify to (x^2-16)(x^2-4) and get x^2=16, x^2=4 then x=+/-4, x=+/-2

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