document.write( "Question 549712: How do you solve this quadratic equation? It doesn't appear in the standard quadratic form so I'm unsure how to solve the problems I have like this one problem. I do know how to solve the ones that look like f(x) = a x^2 + b x + c ; please help me with this:\r
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document.write( "x^3-2x^2+5x-6=0 \n" );
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Algebra.Com's Answer #357972 by mananth(16946)![]() ![]() You can put this solution on YOUR website! use factor theorem. \n" ); document.write( " f(x) = x^3+2x^2-5x-6 \n" ); document.write( " f(-1) = -1+2+5-6 = 0 \n" ); document.write( " So, x+1 is a factor \n" ); document.write( " \n" ); document.write( "By synthetic division, \n" ); document.write( "x^3+2x^2-5x-6 = (x+1)(x^2+x-6) = (x+1)(x-2)(x+3) = 0 \n" ); document.write( " \n" ); document.write( " x = -1, 2, -3\r \n" ); document.write( "\n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |