lg5+lg2该怎么算啊?lg5+lg2=?该怎么算啊?
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![lg5+lg2该怎么算啊?lg5+lg2=?该怎么算啊?](/uploads/image/z/4521294-54-4.jpg?t=lg5%2Blg2%E8%AF%A5%E6%80%8E%E4%B9%88%E7%AE%97%E5%95%8A%3Flg5%2Blg2%3D%3F%E8%AF%A5%E6%80%8E%E4%B9%88%E7%AE%97%E5%95%8A%3F)
lg5+lg2该怎么算啊?lg5+lg2=?该怎么算啊?
lg5+lg2该怎么算啊?
lg5+lg2=?
该怎么算啊?
lg5+lg2该怎么算啊?lg5+lg2=?该怎么算啊?
lg5+lg2=lg(5*2)=lg10=1
加法要变成乘法
lg2*5=lg10
lg5+lg2该怎么算啊?lg5+lg2=?该怎么算啊?
lg5+lg2该怎么算啊?**lg5+lg2=?该怎么算啊?
lg5+lg5*lg2+lg2*lg2
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