document.write( "Question 1010087: How do I Solve by completing the square:
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document.write( "3x^2 + x + 1 = 0 \n" );
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Algebra.Com's Answer #625545 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Solve by completing the square: \n" ); document.write( "3x^2 + x + 1 = 0 \n" ); document.write( "------ \n" ); document.write( "3x^2 + x = -1 \n" ); document.write( "---- \n" ); document.write( "3(x^2 + x/3 + (1/9) = -1 + 3(1/9) \n" ); document.write( "------ \n" ); document.write( "3(x+1/3)^2 = 2 \n" ); document.write( "--- \n" ); document.write( "(x+1/3)^2 = 2/3 \n" ); document.write( "------ \n" ); document.write( "x+(1/3) = sqrt(2/3) or x+(1/3) = -sqrt(2/3) \n" ); document.write( "---- \n" ); document.write( "x = [-1+sqrt(6)]/3 or x = [-1-sqrt(6)]/3 \n" ); document.write( "------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "------------ \n" ); document.write( " |