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OpenStudy (anonymous):
Solve: n4 - 2n2 - 8 = 0
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OpenStudy (anonymous):
n4 - 2n2 - 8 = 0 n4 -4n2 +2n2 -8 = 0 n2(n2-4)+2(n2 -4) =0 (n2+2)(n2-4) = 0 now take it from here
OpenStudy (anonymous):
thanks :)
OpenStudy (anonymous):
welcome
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