2a²b-4ab+3-5a²b-6
2a²b-4ab+3-5a²b-6
數(shù)學(xué)人氣:733 ℃時(shí)間:2020-06-02 04:03:02
優(yōu)質(zhì)解答
第一第四合并,-3a²b-4ab-3第三第五合并親,滿意請(qǐng)采納哦╭(╯3╰)╮
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