document.write( "Question 271534: Find 2 fractions whose product is 3/32 and whose sum is 7/8. \n" ); document.write( "
Algebra.Com's Answer #198768 by edjones(8007)\"\" \"About 
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Let the fractions be x & y
\n" ); document.write( "xy=3/32
\n" ); document.write( "x+y=7/8
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\n" ); document.write( "y=(7/8)-x
\n" ); document.write( "x((7/8)-x)=3/32 substitute (7/8)-x for y.
\n" ); document.write( "32x((7/8)-x)=3
\n" ); document.write( "28x-32x^2=3
\n" ); document.write( "32x^2-28x+3=0
\n" ); document.write( "x=3/4, y=1/8 or vice versa
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\n" ); document.write( "Ed
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Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation \"ax%5E2%2Bbx%2Bc=0\" (in our case \"32x%5E2%2B-28x%2B3+=+0\") has the following solutons:
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\n" ); document.write( " \"x%5B12%5D+=+%28b%2B-sqrt%28+b%5E2-4ac+%29%29%2F2%5Ca\"
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\n" ); document.write( " For these solutions to exist, the discriminant \"b%5E2-4ac\" should not be a negative number.
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\n" ); document.write( " First, we need to compute the discriminant \"b%5E2-4ac\": \"b%5E2-4ac=%28-28%29%5E2-4%2A32%2A3=400\".
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\n" ); document.write( " Discriminant d=400 is greater than zero. That means that there are two solutions: \"+x%5B12%5D+=+%28--28%2B-sqrt%28+400+%29%29%2F2%5Ca\".
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\n" ); document.write( " \"x%5B1%5D+=+%28-%28-28%29%2Bsqrt%28+400+%29%29%2F2%5C32+=+0.75\"
\n" ); document.write( " \"x%5B2%5D+=+%28-%28-28%29-sqrt%28+400+%29%29%2F2%5C32+=+0.125\"
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\n" ); document.write( " Quadratic expression \"32x%5E2%2B-28x%2B3\" can be factored:
\n" ); document.write( " \"32x%5E2%2B-28x%2B3+=+32%28x-0.75%29%2A%28x-0.125%29\"
\n" ); document.write( " Again, the answer is: 0.75, 0.125.\n" ); document.write( "Here's your graph:
\n" ); document.write( "\"graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+32%2Ax%5E2%2B-28%2Ax%2B3+%29\"
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