SOLUTION: x^4-x^2-12=0
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Question 32246
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x^4-x^2-12=0
Answer by
stanbon(75887)
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(x^2-4)(x^2+3)=0
(x-2)(x+2)(x+sqrt3i)(x-sqrt3i)=0
x=2 or x=-2 or x=-isqrt3 or x=isqrt3
Cheers,
stan H.