document.write( "Question 761426: 6xsquared+9x=2 \n" ); document.write( "
Algebra.Com's Answer #463302 by ramkikk66(644)\"\" \"About 
You can put this solution on YOUR website!
I assume you mean
\n" ); document.write( "\"6%2Ax%5E2+%2B+9%2Ax+=+2\" or \"6%2Ax%5E2+%2B+9%2Ax+-+2+=+0\"\r
\n" ); document.write( "\n" ); document.write( "This is a standard quadratic equation which can be solved using the quadratic solver, as shown below.\r
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Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation \"ax%5E2%2Bbx%2Bc=0\" (in our case \"6x%5E2%2B9x%2B-2+=+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=%289%29%5E2-4%2A6%2A-2=129\".
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\n" ); document.write( " Discriminant d=129 is greater than zero. That means that there are two solutions: \"+x%5B12%5D+=+%28-9%2B-sqrt%28+129+%29%29%2F2%5Ca\".
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\n" ); document.write( " \"x%5B1%5D+=+%28-%289%29%2Bsqrt%28+129+%29%29%2F2%5C6+=+0.196484724300046\"
\n" ); document.write( " \"x%5B2%5D+=+%28-%289%29-sqrt%28+129+%29%29%2F2%5C6+=+-1.69648472430005\"
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\n" ); document.write( " Quadratic expression \"6x%5E2%2B9x%2B-2\" can be factored:
\n" ); document.write( " \"6x%5E2%2B9x%2B-2+=+6%28x-0.196484724300046%29%2A%28x--1.69648472430005%29\"
\n" ); document.write( " Again, the answer is: 0.196484724300046, -1.69648472430005.\n" ); document.write( "Here's your graph:
\n" ); document.write( "\"graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+6%2Ax%5E2%2B9%2Ax%2B-2+%29\"
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