作业帮lg5²+2/3lg8+lg5*lg20+(lg2)²
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lg5²+2/3lg8+lg5*lg20+(lg2)²
lg5²+2/3lg8+lg5*lg20+(lg2)²
lg5²+2/3lg8+lg5*lg20+(lg2)²
lg5²+2/3lg8+lg5*lg20+(lg2)²
=(2 lg5+2 lg2)+lg5(2lg2+lg5)+(lg2)^2
=2+2lg2lg5+(lg5)^2+(lg2)^2
=2+(lg2+lg5)^2
=3
lg5²+2/3lg8+lg5*lg20+(lg2)²
lg5²+2/3lg8+lg5×lg20+(lg2)²
lg5*lg5+2/3lg8+lg5*lg20求值,
高一对数运算一道lg5²+2/3lg8+lg5*lg20+lg²2=
lg25+2/3lg8+lg5*lg20+lg²2
lg25+(2/3)lg8+lg5*lg20+lg2²
lg8+3lg5=?
lg5^2+2/3lg8+lg5*lg20+lg2^2
lg5^2+2/3lg8+lg5*lg20+lg^2
lg5^2+lg8^2/3+lg5*lg20+(lg2)^2=?
（lg5)平方+2/3lg8+lg5乘lg20+（lg2)平方
3lg2+2lg5+lg5乘以lg8怎样算
2lg5+2/3lg8等于
lg5^2+2/3lg8+lg5*lg20+(lg2)^2 lg5*lg20怎么办啊
lg2+lg5=?1-lg2=?1-lg5=?2lg5+2/3lg8+lg5*lg20+(lg2)2=?
lg8+3 lg5等于多少
lg8+3lg5等于多少
lg8+3lg5=____?