document.write( "Question 433037: Solve the equation by completing the square.
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document.write( "9y^2 -12y -2 = 0 \n" );
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Algebra.Com's Answer #300145 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Solve the equation by completing the square. \n" ); document.write( "9y^2 -12y -2 = 0 \n" ); document.write( "--- \n" ); document.write( "9y^2-12y = 2 \n" ); document.write( "--- \n" ); document.write( "9(y^2-(4/3)y+?) = 2+9(?) \n" ); document.write( "--- \n" ); document.write( "9(y^2-(4/3)y+(2/3)^2) = 2+9(2/3)^2 \n" ); document.write( "--- \n" ); document.write( "9(y-(2/3))^2 = 2+4 \n" ); document.write( "(y-(2/3))^2 = 2/3 \n" ); document.write( "------------ \n" ); document.write( "y-(2/3) = +/- sqrt(2/3) \n" ); document.write( "--- \n" ); document.write( "y = (2/3)+sqrt(2/3) or y = (2/3)-sqrt(2/3) \n" ); document.write( "============================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======== \n" ); document.write( " |