(y的m次方)²×(-y³)
=-(y的2m次方)×(y³)
=-y的2m+3次方
(y的m次方)²×(-y³)
(y的m次方)²×(-y³)
如題,
如題,
其他人氣:452 ℃時間:2020-10-01 00:51:28
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