document.write( "Question 716766: Rational Root to x^3 + 2x^2 - 8x - 16 = 0 \n" ); document.write( "
Algebra.Com's Answer #439972 by stanbon(75887)\"\" \"About 
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Rational Root to x^3 + 2x^2 - 8x - 16 = 0
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\n" ); document.write( "Using synthetic division:
\n" ); document.write( "-2)....1....2....-8....-16
\n" ); document.write( ".......1....0....-8...|..0\r
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\n" ); document.write( "Find roots of the the quotient:
\n" ); document.write( "x^2 - 8 = 0
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\n" ); document.write( "x = 2sqrt(2) or x = -2sqrt(2) or x = -2
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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