document.write( "Question 278384: factor x^4+2x^2+15= \n" ); document.write( "
Algebra.Com's Answer #202554 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
factor x^4+2x^2+15=
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\n" ); document.write( "Quadratic Formula:
\n" ); document.write( "x^2 = [-2 +- sqrt(4-4*15)]/2
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\n" ); document.write( "x^2 = [-2 +-sqrt(-56)]/2
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\n" ); document.write( "x^2 = [-2 +- 2isqrt(14)]/2
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\n" ); document.write( "x^2 = [-1 + isqrt(14)] or x^2 = [-1-isqrt(14)]
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\n" ); document.write( "x = +-sqrt[-1 + isqrt(14)] or x = -+sqrt[-1 - isqrt(14)]
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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