(x-1/2)(x²+1/2 x+1/4)(x³+1/8）=(x-1/2)(x+1/2 )^2(x³+1/8）=(x²-1/4)(x+1/2)(x+1/2)(x²-1/2x+1/4)=(x²-1/4)(x+1/2)^2(x-1/2)^2=(x²-1/4)(x²-1/4)(x²-1/4)=(x²-...