document.write( "Question 996297: X^3-5x^2-x=0 solve for x \n" ); document.write( "
Algebra.Com's Answer #614787 by MathLover1(20849)\"\" \"About 
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\n" ); document.write( "\"x%5E3-5x%5E2-x=0+\"\r
\n" ); document.write( "\n" ); document.write( "\"x%28x%5E2-5x-1%29=0+\"\r
\n" ); document.write( "\n" ); document.write( "one solution is \"highlight%28x=0%29\"\r
\n" ); document.write( "\n" ); document.write( "now use quadratic formula to find other two solutions\r
\n" ); document.write( "\n" ); document.write( "\"%28x%5E2-5x-1%29=0+\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%28-%28-5%29+%2B-+sqrt%28+%28-5%29%5E2-4%2A1%2A%28-1%29+%29%29%2F%282%2A1%29+\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%285+%2B-+sqrt%28+25%2B4+%29%29%2F2+\"\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%285+%2B-+sqrt%28+29+%29%29%2F2+\"\r
\n" ); document.write( "\n" ); document.write( "exact solutions:\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x+=+%285+%2B+sqrt%28+29+%29%29%2F2%29+\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x+=+%285+-+sqrt%28+29+%29%29%2F2+%29\"\r
\n" ); document.write( "\n" ); document.write( "approximate solutions:\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%285+%2B+sqrt%28+29+%29%29%2F2+\"=>\"x+=+%285+%2B+5.4%29%2F2+\"=>\"x+=+10.4%2F2+\"=>\"highlight%28x+=+5.2%29+\"\r
\n" ); document.write( "\n" ); document.write( "\"x+=+%285+-+sqrt%28+29+%29%29%2F2+\"=>\"x+=+%285+-+5.4%29%2F2+\"=>\"x+=+-0.4%2F2+\"=>\"highlight%28x+=+-0.2+%29\"\r
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