document.write( "Question 36135: use the discriminant to determine the number of solutions of the quadratic equation, and whether the solutions are real or complex. Note: It is not necessary to find the roots; just determine the number and types of solutions.\r
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document.write( "z^2 + z + 1 = 0 \n" );
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Algebra.Com's Answer #22130 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! z^2 + z + 1 = 0\r \n" ); document.write( "\n" ); document.write( "a=1, b=1, c=1 \n" ); document.write( "discriminant = b^2-4ac \n" ); document.write( "= 1-4=-3 \n" ); document.write( "Since the discrinant is negative \n" ); document.write( "the equation has no Real Number zeroes. \n" ); document.write( "It has two complex roots. \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |