(本小题满分7分)计算:-八年级数学

题目简介

(本小题满分7分)计算:-八年级数学

题目详情

(本小题满分7分)计算:
题型:计算题难度:中档来源:不详

答案

解:原式···················································· (4分)
································································································ (3分)

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