yay qns 10 down..

10a)dy/dx,using product rule,should give you 4x(x-2)(x-1)

10b)dy/dx=0,sub x=0,2,1 into x^2(x-2)^2, so it should give you the points (0,0),(1,1)and(2,0)

10c)Here is my reason..Do not copy if you think it is wrong!
As the points (2,0) and (0,0) are on the x axis, it is the minimum point
As the point (1,1) is above the x-axis it is the maximum point.

BY Benjamin pang .