Tìm f′(1), f′(2), f′(3) nếu f(x) = (x − 1)(x − 2)^2 (x − 3)^3

Câu hỏi :

Tìm f′(1), f′(2), f′(3) nếu $f\left(x\right) = (x - 1){\left(x - 2\right)}^2{\left(x - 3\right)}^3$