document.write( "Question 1126704: Use $\"u=5%2Fx\"$ as a substitution to solve $\"125%2Fx%5E2\"$ + $\"35%2Fx\"$ + $\"2=8\"$ \r
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Algebra.Com's Answer #743025 by FrankM(1040) $\"\"$ $\"About$

You can put this solution on YOUR website!
When you substitute, you get\r
\n" ); document.write( "\n" ); document.write( "5u^2+7u+2=8\r
\n" ); document.write( "\n" ); document.write( "5u^2+7u-6=0\r
\n" ); document.write( "\n" ); document.write( "(5u-3)(u+2)=0\r
\n" ); document.write( "\n" ); document.write( "5u-3=0\r
\n" ); document.write( "\n" ); document.write( "5u=3\r
\n" ); document.write( "\n" ); document.write( "u=3/5\r
\n" ); document.write( "\n" ); document.write( "5/x=3/5\r
\n" ); document.write( "\n" ); document.write( "3x=25\r
\n" ); document.write( "\n" ); document.write( "x= 25/3\r
\n" ); document.write( "\n" ); document.write( "AND\r
\n" ); document.write( "\n" ); document.write( "u=-2\r
\n" ); document.write( "\n" ); document.write( "5/x = -2\r
\n" ); document.write( "\n" ); document.write( "x=-5/2 \n" ); document.write( "

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