document.write( "Question 992340: 20/x+1 -( x/2) +1 is less than or equal to 0 \r
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document.write( "Can someone help me with this one, please? Once I go into factoring, i lose myself.
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document.write( "Solve the nonlinear inequality. Express the solution using interval notation. \n" );
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Algebra.Com's Answer #611948 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "20/(x+1) -( x/2) +1 <= 0 \n" ); document.write( "----- \n" ); document.write( "Assuming x > -1 (to keep x+1 > 0), you get: \n" ); document.write( "40 - x(x+1) < 0 \n" ); document.write( "40 - x^2 - x < 0 \n" ); document.write( "---- \n" ); document.write( "x^2 + x - 40 > 0 \n" ); document.write( "---- \n" ); document.write( "Solve the EQUALITY:: \n" ); document.write( "x = [-1+-sqrt(1-4*-40)]/2 \n" ); document.write( "--- \n" ); document.write( "x = [-1 +- sqrt(161)]/2 \n" ); document.write( "----- \n" ); document.write( "These are the zero values of the quadratic. \n" ); document.write( "The values greater than zero are to the left of [-1-sqrt(161)]/2 \n" ); document.write( "and to the right of [-1+sqrt(161)]/2 \n" ); document.write( "---------- \n" ); document.write( "ans: Since x > -1, the solution is x > [-1+sqrt(161)]/2 \n" ); document.write( "-------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |