For 7(ii) I believe the equation of the curve was y = x(3x-x^2) or y = 3x^2 -x^3
And the question was a translation by 2 units parallel to the x axis
So can you just put 3(x-2)^2 - (x-2)^3 ?
There was hardly any space for multiplying that out so I don't see how you could put (5-x)(x-2)^2 ???