the expression before the flower bed was increased is the x. to solve how much it was increased, you must factor the given quadratic equation:
x^2 + 11x + 24 = 24
( x + 3 ) ( x + 8 ) = 24
( x + 3 ) ( x + 5 + 3) = 24
the sides of the rectangular flower bead was increase by 2 ft each