Part A: The area of a square is (9a^2 − 24a + 16) square units. Determine the length of each side of the square by factoring the area expression completely. Show your work. (5 points) Part B: The area of a rectangle is (25a^2 − 36b^2) square units. Determine the dimensions of the rectangle by factoring the area expression completely. Show your work. (5 points)