document.write( "Question 220965: HAVING PROBLEMS SOLVING QUADRATIC EQUATIONS INVOLVING FRACTIONS E.G \r
\n" ); document.write( "\n" ); document.write( "4 OVER 2X-3 - 2 OVER X = 1 OVER NINE.\r
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Algebra.Com's Answer #165768 by drj(1380)\"\" \"About 
You can put this solution on YOUR website!
HAVING PROBLEMS SOLVING QUADRATIC EQUATIONS INVOLVING FRACTIONS E.G \r
\n" ); document.write( "\n" ); document.write( "4 OVER 2X-3 - 2 OVER X = 1 OVER NINE.\r
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\n" ); document.write( "\n" ); document.write( "\"4%2F%282x-3%29-2%2Fx=1%2F9\"\r
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\n" ); document.write( "\n" ); document.write( "Step 1. To get rid of fractions multiply by 9x(2x-3) to both sides of the equation:\r
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\n" ); document.write( "\n" ); document.write( "\"9x%282x-3%29%2A4%2F%282x-3%29-9x%282x-3%29%2A2%2Fx=9x%282x-3%29%2A1%2F9\"\r
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\n" ); document.write( "\n" ); document.write( "\"36x-18%282x-3%29=9x%282x-3%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"36x-36x%2B54=18x%5E2-27x\"\r
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\n" ); document.write( "\n" ); document.write( "Step 2. Subtract\"54\" to both sides of the equation:\r
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\n" ); document.write( "\n" ); document.write( "\"54-54=18x%5E2-27x-54\"\r
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\n" ); document.write( "\n" ); document.write( "\"0=18x%5E2-27x-54\"\r
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\n" ); document.write( "\n" ); document.write( "\"0=2x%5E2-3x-6\"\r
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\n" ); document.write( "\n" ); document.write( "Step 3. Solving using the quadratic formula yields\r
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\n" ); document.write( "\n" ); document.write( "\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"\r
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\n" ); document.write( "\n" ); document.write( "where a=2, b=-3, and c=-6\r
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Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation \"ax%5E2%2Bbx%2Bc=0\" (in our case \"2x%5E2%2B-3x%2B-6+=+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=%28-3%29%5E2-4%2A2%2A-6=57\".
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\n" ); document.write( " Discriminant d=57 is greater than zero. That means that there are two solutions: \"+x%5B12%5D+=+%28--3%2B-sqrt%28+57+%29%29%2F2%5Ca\".
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\n" ); document.write( " \"x%5B1%5D+=+%28-%28-3%29%2Bsqrt%28+57+%29%29%2F2%5C2+=+2.63745860881769\"
\n" ); document.write( " \"x%5B2%5D+=+%28-%28-3%29-sqrt%28+57+%29%29%2F2%5C2+=+-1.13745860881769\"
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\n" ); document.write( " Quadratic expression \"2x%5E2%2B-3x%2B-6\" can be factored:
\n" ); document.write( " \"2x%5E2%2B-3x%2B-6+=+2%28x-2.63745860881769%29%2A%28x--1.13745860881769%29\"
\n" ); document.write( " Again, the answer is: 2.63745860881769, -1.13745860881769.\n" ); document.write( "Here's your graph:
\n" ); document.write( "\"graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+2%2Ax%5E2%2B-3%2Ax%2B-6+%29\"

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\n" ); document.write( "\n" ); document.write( "I hope the above steps were helpful.\r
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\n" ); document.write( "\n" ); document.write( "For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.\r
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\n" ); document.write( "\n" ); document.write( "Good luck in your studies!\r
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\n" ); document.write( "\n" ); document.write( "Respectfully,
\n" ); document.write( "Dr J\r
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