计算或化简:(-x)³(-y)³-(-x³y²)=_________
计算或化简:(-x)³(-y)³-(-x³y²)=_________
数学人气:876 ℃时间:2020-03-13 23:02:02
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(-x)³(-y)³-(-x³y²)=x³y³+x³y²
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