乘法分配律=>a×b±a×c=a(b±c) 98x37+98x(-36)=?

发布时间:2019-12-14 09:27:52

乘法分配律=>a×b±a×c=a(b±c)
98x37+98x(-36)=?
199x(-183)-(-192)x199-9x199=?
293x225+265x(-293)-39x(-293)=?

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