(x-y)的平方-(y-x)的3次方×(x-y)的5次方
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(x-y)的平方-(y-x)的3次方×(x-y)的5次方
=(x-y)² + (x-y)³·(x-y)的5次幂
=(x-y)² + (x-y)的8次幂
=(x-y)²·[1+ (x-y)的6次幂]
=(x-y)²·[1+ (x-y)²]·[1- (x-y)²+ (x-y)的4次幂]
=(x-y)² + (x-y)³·(x-y)的5次幂
=(x-y)² + (x-y)的8次幂
=(x-y)²·[1+ (x-y)的6次幂]
=(x-y)²·[1+ (x-y)²]·[1- (x-y)²+ (x-y)的4次幂]
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