A curve is graphed on the x y coordinate plane. The horizontal axis is labeled: x. The vertical axis is labeled: y. The curve is labeled: y = x^4 minus 2 x^3. It begins in the second quadrant, goes down and to the right, passes through the point (0, 0), enters the fourth quadrant, goes down and to the right, reaches a low point, then goes up and to the right, passes through the point (2, 0) and enters the first quadrant. The area between the x axis, where y = 0, and the curve in the fourth quadrant is shaded.