6²-x²=5²-(5-x)²

学习 时间:2026-04-04 17:48:39 阅读:138
6²-x²=5²-(5-x)²

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矮小的信封

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2026-04-04 17:48:39

36-x^2=25-(x^2-10x+25)36-x^2=-x^2+10x36=10xx=3。6