document.write( "Question 669022: Find the roots of the polynomial equation.\r
\n" ); document.write( "\n" ); document.write( "-x3 + 5x2 - 11x + 55 = 0\r
\n" ); document.write( "\n" ); document.write( "A) i√11, -1√11,-5
\n" ); document.write( "B) √11,-√11,5
\n" ); document.write( "C) i√11,-5
\n" ); document.write( "D) i√11,-i√11,5 \n" ); document.write( "
Algebra.Com's Answer #416018 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
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document.write( "Hi,
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document.write( "y = -x3 + 5x2 - 11x + 55   ||x = 5 one root  -125 + 125 - 55 + 55 = 0
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document.write( "using Synthetic Divsion
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document.write( "5	-1	5	-11	55
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document.write( " 	 	-5	0	-55
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document.write( " 	-1	0	-11	0
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document.write( "results in:
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document.write( " -x^2 - 11 = 0
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document.write( " x^2 + 11 = 0
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document.write( "   x^2 = -11
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document.write( "   x = ± i√11
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document.write( "roots are:  i√11,-i√11,5
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