(x-2)³ +20(2x - 1)³ + x(x - 5 ) при х = 1
(x²+1)³-3(x²-x+1)²-5x(x-2)+10 при x=-1
(1-3y)³-3(y+3)³+10y(y²-2) при y=2
(y³+2)³-y^6(y³-6)+2(y-2)² при y= -2