document.write( "Question 292771: How do you solve the equation by completing the square, w^2-14w+24=0 ? \n" ); document.write( "
Algebra.Com's Answer #211402 by dabanfield(803)![]() ![]() ![]() You can put this solution on YOUR website! w^2-14w+24=0\r \n" ); document.write( "\n" ); document.write( "1.) w^2 - 14w = -24\r \n" ); document.write( "\n" ); document.write( "We need to add the same constant to both sides to get the left side to factor into (x-a)^2 \r \n" ); document.write( "\n" ); document.write( "If we take half the coefficent on w (that is -14) and then square it we will have the constant we are looking for. -14/2 = -7. If we square -7 we get 49. So we will add 49 to both sides of 1.):\r \n" ); document.write( "\n" ); document.write( "w^2 - 14w + 49 = -24 + 49 \n" ); document.write( "(w-7)^2 = 25\r \n" ); document.write( "\n" ); document.write( "w-7 = sqrt(25) or w-7 = -sqrt(25)\r \n" ); document.write( "\n" ); document.write( "w-7 = 5 or w-7 = -5\r \n" ); document.write( "\n" ); document.write( "w = 12 or w = 2\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |