SOLUTION: steps to solve x^4 + 2x^2-15=0

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Question 628443: steps to solve x^4 + 2x^2-15=0
Found 2 solutions by lwsshak3, stanbon:
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
steps to solve x^4 + 2x^2-15=0
factor
(x^2+5)(x^2-3)=0
x^2+5=0
x^2=-5
x=±√-5
x=±(√5) i
or
x^2-3=0
x^2=3
x=±√3
two real roots: ±√3
two imaginary or non-real roots: ±(√5) i

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
steps to solve x^4 + 2x^2-15=0
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Factor:
(x^2+5)(x^2-3) = 0
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x^2 = -5 or x^2 = 3
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Real-Number solutions:
x = sqrt(3) or x = -sqrt(3)
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Cheers,
Stan H.
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