document.write( "Question 439100: please help me factor or complete the square
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Algebra.Com's Answer #303487 by jorel1380(3719)\"\" \"About 
You can put this solution on YOUR website!
6x2-7x=20
\n" ); document.write( "6x2-7x-20=0
\n" ); document.write( "(3x+4)(2x-5)=0
\n" ); document.write( "x=-4/3 or 5/2.
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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%2B-7x%2B-20+=+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=%28-7%29%5E2-4%2A6%2A-20=529\".
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\n" ); document.write( " Discriminant d=529 is greater than zero. That means that there are two solutions: \"+x%5B12%5D+=+%28--7%2B-sqrt%28+529+%29%29%2F2%5Ca\".
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\n" ); document.write( " \"x%5B1%5D+=+%28-%28-7%29%2Bsqrt%28+529+%29%29%2F2%5C6+=+2.5\"
\n" ); document.write( " \"x%5B2%5D+=+%28-%28-7%29-sqrt%28+529+%29%29%2F2%5C6+=+-1.33333333333333\"
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\n" ); document.write( " Quadratic expression \"6x%5E2%2B-7x%2B-20\" can be factored:
\n" ); document.write( " \"6x%5E2%2B-7x%2B-20+=+6%28x-2.5%29%2A%28x--1.33333333333333%29\"
\n" ); document.write( " Again, the answer is: 2.5, -1.33333333333333.\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%2B-7%2Ax%2B-20+%29\"
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