document.write( "Question 48346: 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( "x2 + 6x - 7 = 0\r
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document.write( "z2 + z + 1 = 0\r
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document.write( "(3)1/2y2 - 4y - 7(3)1/2 = 0\r
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document.write( "2x2 - 10x + 25 = 0\r
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document.write( "2x2 - 6x + 5 = 0 \n" );
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Algebra.Com's Answer #31988 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! 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. \n" ); document.write( "x2 + 6x - 7 = 0 \n" ); document.write( "DEL=6^2-4*1*(-7)=36+28=64..2 SOLUTIONS,REAL\r \n" ); document.write( "\n" ); document.write( "z2 + z + 1 = 0 \n" ); document.write( "DEL=1-4=-3..-VE........IMAGINARY SOLUTION ..2 \r \n" ); document.write( "\n" ); document.write( "(3)1/2y2 - 4y - 7(3)1/2 = 0...????PLEASE TYPE PROPERLY \n" ); document.write( "2x2 - 10x + 25 = 0 \n" ); document.write( "DEL=100-4*2*25=-VE......IMAGINARY..2 \n" ); document.write( "2x2 - 6x + 5 = 0 \n" ); document.write( "DEL=36-40=-VE...IMAGINARY..2 \n" ); document.write( " |