Question 278384: factor x^4+2x^2+15=
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! factor x^4+2x^2+15=
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Quadratic Formula:
x^2 = [-2 +- sqrt(4-4*15)]/2
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x^2 = [-2 +-sqrt(-56)]/2
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x^2 = [-2 +- 2isqrt(14)]/2
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x^2 = [-1 + isqrt(14)] or x^2 = [-1-isqrt(14)]
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x = +-sqrt[-1 + isqrt(14)] or x = -+sqrt[-1 - isqrt(14)]
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Cheers,
Stan H.
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