Combine these radicals.A rectangle has an area of (x2 − 17x + 72) square units. Since the area of a rectangle is determined using the formula, A = lw, what could be the length and width of the rectangle?

x2 - 17x + 72

=(x - 9)(x - 8)

if x = 20  the length of the rectangle is 12 units and width 11 units.