document.write( "Question 481207: I have to use the discriminant to determine the number of solutions of the quadratic equation, and weather the solutions are real or complex.\r
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document.write( "2x^2+x-1=0 \n" );
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Algebra.Com's Answer #329549 by rfer(16322) ![]() You can put this solution on YOUR website! a=2, b=1, c=-1 \n" ); document.write( "b^2-4*ac \n" ); document.write( "1^2-4*2*-1 \n" ); document.write( "1+8=+9 \n" ); document.write( "---------------- \n" ); document.write( "I will let you take it from here. \n" ); document.write( "Tip: solutions are real \n" ); document.write( " |