document.write( "Question 773274: 0=2x^2+7x-4 \n" ); document.write( "

Algebra.Com's Answer #471410 by ramkikk66(644) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( " is a standard quadratic equation which we can solve \r\n" );
document.write( "through factorization.\r\n" );
document.write( "Rewrite the equation, splitting 7x as 8x - x\r\n" );
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document.write( "So the 2 roots are:\r\n" );
document.write( " or \r\n" );
document.write( " or \r\n" );
document.write( "Hope you got it:)\r\n" );
document.write( "See the graph below:\r\n" );
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document.write( "Solved by pluggable solver: SOLVE quadratic equation with variable
Quadratic equation  (in our case ) has the following solutons:\r\n" );
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document.write( "  For these solutions to exist, the discriminant  should not be a negative number.\r\n" );
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document.write( "  First, we need to compute the discriminant : .\r\n" );
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document.write( "  Discriminant d=81 is greater than zero. That means that there are two solutions: .\r\n" );
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document.write( "    Quadratic expression  can be factored:\r\n" );
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document.write( "  Again, the answer is: 0.5, -4.\n" );
document.write( "Here's your graph:\n" );
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