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OpenStudy (anonymous):
find all roots x^4-3x^2-10=0
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OpenStudy (asnaseer):
substitute \(u=x^2\) and solve the quadratic in u
OpenStudy (asnaseer):
then solve for x
OpenStudy (anonymous):
Factoring -10=-5(2) (X^2-5)(x^2+3)=0 x^2-5=0 or x^2+3=0 And you solve for x
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