document.write( "Question 99094: i don't understand this at all solve each of the folowing quadratic equations by completing the square. \r
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document.write( "2x^2 + 10x + 11 = 0 \n" );
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Algebra.Com's Answer #72105 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 2x^2 + 10x + 11 = 0 \n" ); document.write( "2x^2+10x = -11 \n" ); document.write( "2(x^2+5x+(5/2)^2) = -11 + 2*(5/2)^2 \n" ); document.write( "2(x+(5/2))^2 = -44/4 + 50/4 \n" ); document.write( "2(x+(5/2))^2 = 6/4 \n" ); document.write( "(x+(5/2))^2 = 6/8= 3/4 \n" ); document.write( "Take the square root to get: \n" ); document.write( "x+(5/2) = sqrt(3/4) or x+(5/2) = -sqrt(3/4) \n" ); document.write( "x = [-(5/2)+(1/2)sqrt(3)] or x = [-(5/2)-(1/2)sqrt3] \n" ); document.write( "x = [-5+sqrt(3)]/2 or x=[-5-sqrt(3)]/2 \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |