document.write( "Question 709451: solve the polynomial equation by using the zero product principle.\r
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document.write( "x^3-27=0 \n" );
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Algebra.Com's Answer #436578 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! solve the polynomial equation by using the zero product principle. \n" ); document.write( "x^3-27=0 \n" ); document.write( "---- \n" ); document.write( "Factor: \n" ); document.write( "(x-3)(x^2+3x+27) = 0 \n" ); document.write( "--- \n" ); document.write( "Solve the quadratic factor: \n" ); document.write( "x^2 + 3x + 27 = 0 \n" ); document.write( "x = [-3 +- sqrt(9-4*27)/2 \n" ); document.write( "--- \n" ); document.write( "x = [-3 +- sqrt(-99)]/2 \n" ); document.write( "-- \n" ); document.write( "x = [-3+-3sqrt(11)i]/2 (2 complex number solutions) \n" ); document.write( "x = 3 (the Real Number solution) \n" ); document.write( "==================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |