y=(4x³-4x)/(x-2)
y'=((12x²-4)*(x-2)-(4x³-4x)*1)/(x-2)²=(12x³-24x²-4x+8-4x³+4x)/(x-2)²=
(8x³-24x²+8)/(x-2)²
y=(4x³-4x)/(x-2)
y'=((12x²-4)*(x-2)-(4x³-4x)*1)/(x-2)²=(12x³-24x²-4x+8-4x³+4x)/(x-2)²=
(8x³-24x²+8)/(x-2)²