2的X次方乘以3的Y次方再乘以111的Z次方=1998,求（XYZ）的值
人气：192 ℃ 时间：2019-08-18 00:42:14
解答
2^x*3^y*111^z=1998
1998=2*3*3*111
对应原式得
x=1,y=2,z=1
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