document.write( "Question 980157: f(x)= 7/x + 7/x+4 such that f(x)= 1
\n" ); document.write( "So I set up the problem like this 1= 7/x + 7/x+4 and I get stuck. I'm supposed to solve using the quadratic formula. Help!
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Algebra.Com's Answer #601388 by MathTherapy(10552)\"\" \"About 
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\n" ); document.write( "f(x)= 7/x + 7/x+4 such that f(x)= 1
\n" ); document.write( "So I set up the problem like this 1= 7/x + 7/x+4 and I get stuck. I'm supposed to solve using the quadratic formula. Help!
\n" ); document.write( "
\"1+=+7%2Fx+%2B+7%2F%28x+%2B+4%29\" <-------- Good job up to here
\n" ); document.write( "\"x%28x+%2B+4%29+=+7%28x+%2B+4%29+%2B+7x\" --------- Multiplying by LCD: x(x + 4)
\n" ); document.write( "\"x%5E2+%2B+4x+=+7x+%2B+28+%2B+7x\"
\n" ); document.write( "\"x%5E2+%2B+4x+-+7x+=+14x+%2B+28\"
\n" ); document.write( "\"x%5E2+%2B+4x+-+14x+-+28+=+0\"
\n" ); document.write( "\"x%5E2+-+10x+-+28+=+0\"
\n" ); document.write( "Solve the above trinomial for x, using the quadratic equation formula. \n" ); document.write( "
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