document.write( "Question 1116344: solve 2x^2 +13x+ 20 = 0 using complete the square \n" ); document.write( "
Algebra.Com's Answer #731219 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! solve 2x^2 +13x+ 20 = 0 using complete the square \n" ); document.write( "----------- \n" ); document.write( "2x^2 +13x+ 20 = 0 \n" ); document.write( "x^2 + 6.5x + 10 = 0 \n" ); document.write( "x^2 + 6.5x = -10 \n" ); document.write( "x^2 + 6.5x + (6.5/2)^2 = -10 + (6.5/2)^2 = 0.5625 \n" ); document.write( "(x + 3.25)^2 = 0.75^2 \n" ); document.write( "x + 3.25 = 0.75 \n" ); document.write( "x = -2.5 \n" ); document.write( "=============== \n" ); document.write( "x + 3.25 = -0.75 \n" ); document.write( "x = -4 \n" ); document.write( " \n" ); document.write( " |