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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\n" ); document.write( "\n" ); document.write( "2x^2+x-1=0
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Algebra.Com's Answer #329549 by rfer(16322)\"\" \"About 
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
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\n" ); document.write( "I will let you take it from here.
\n" ); document.write( "Tip: solutions are real
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