2a平方-2b平方(因式分解)
2a平方-2b平方(因式分解)
快快快,我很急的...明天就要交了...答对了有赏啊...
快快快,我很急的...明天就要交了...答对了有赏啊...
数学人气:732 ℃时间:2019-12-01 13:13:32
优质解答
2(a+b)(a-b)
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