赞 badzeugene 幼苗
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(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)=(x²-1/4)^3
=(x²-1/4)(x+1/2)^2(x-1/2)^2=(x²-1/4)(x²-1/4)(x²-1/4)=(x²-1/4)^3
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