document.write( "Question 774630: the length of the rectangle is 9 cm more than its width.Its area is 112 square.find the dimension of the rectangle \n" ); document.write( "
Algebra.Com's Answer #472351 by Cromlix(4381) You can put this solution on YOUR website! Width = x \n" ); document.write( "Length = x + 9 \n" ); document.write( "Area = Length * Width \n" ); document.write( "112 = (x + 9) * x \n" ); document.write( "112 = x^2 + 9x \n" ); document.write( "x^2 + 9x - 112 = 0 \n" ); document.write( "(x - 7)(x + 16) = 0 \n" ); document.write( "x + 16 = 0 \n" ); document.write( "x = -16 (no answer as x < 0) \n" ); document.write( "x - 7 = 0 \n" ); document.write( "x = 7 \n" ); document.write( "Width = 7cm \n" ); document.write( "Length = 16cm \n" ); document.write( "Hope this helps. \n" ); document.write( ":-) \n" ); document.write( " |