document.write( "Question 606890: 3x^2+19x=154 \n" ); document.write( "
Algebra.Com's Answer #382733 by asuar010(338)\"\" \"About 
You can put this solution on YOUR website!
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Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation \"ax%5E2%2Bbx%2Bc=0\" (in our case \"3x%5E2%2B19x%2B-154+=+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=%2819%29%5E2-4%2A3%2A-154=2209\".
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\n" ); document.write( " Discriminant d=2209 is greater than zero. That means that there are two solutions: \"+x%5B12%5D+=+%28-19%2B-sqrt%28+2209+%29%29%2F2%5Ca\".
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\n" ); document.write( " \"x%5B1%5D+=+%28-%2819%29%2Bsqrt%28+2209+%29%29%2F2%5C3+=+4.66666666666667\"
\n" ); document.write( " \"x%5B2%5D+=+%28-%2819%29-sqrt%28+2209+%29%29%2F2%5C3+=+-11\"
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\n" ); document.write( " Quadratic expression \"3x%5E2%2B19x%2B-154\" can be factored:
\n" ); document.write( " \"3x%5E2%2B19x%2B-154+=+3%28x-4.66666666666667%29%2A%28x--11%29\"
\n" ); document.write( " Again, the answer is: 4.66666666666667, -11.\n" ); document.write( "Here's your graph:
\n" ); document.write( "\"graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+3%2Ax%5E2%2B19%2Ax%2B-154+%29\"
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