document.write( "Question 32646: solve x(x-1) = 3x + 2\r
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document.write( "I got x^2 - x = 3x + 2
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document.write( "x^2 - 4x - 2 = 0\r
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document.write( "im stuck! \n" );
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Algebra.Com's Answer #19163 by mukhopadhyay(490)![]() ![]() ![]() You can put this solution on YOUR website! x(x-1) = 3x + 2 \n" ); document.write( "=> x^2-x = 3x+2 \n" ); document.write( "=> x^2-x-3x-2 = 0 \n" ); document.write( "=> x^2-4x-2 = 0 \n" ); document.write( "The roots of quadratic equation ax^2+bx+c=0 are \n" ); document.write( "[-b+sqrt(b^2-4ac)]/2a and [-b-sqrt(b^2-4ac)]/2a; \n" ); document.write( "Here a=1, b=-4 and c=-2 \n" ); document.write( "The roots of this equation are: \n" ); document.write( "[4+sqrt(16+8)]/2 and [4-sqrt(16+8)]/2 \n" ); document.write( "=> [4+sqrt(24)]/2 and [4-sqrt(24)]/2 \n" ); document.write( "=> x=2+sqrt(6) and x=2-sqrt(6) \n" ); document.write( " \n" ); document.write( " |