lg5+㏒3^6+lg20-㏒3^2

lg5+㏒3^6+lg20-㏒3^2 ㏒8^9×㏒3^2+lg5×lg20+（lg2)^2 lg5*lg5+2/3lg8+lg5*lg20求值, lg5^2+2/3lg8+lg5*lg20+(lg2)^2 lg5*lg20怎么办啊 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 lg5²+2/3lg8+lg5*lg20+(lg2)² lg5²+2/3lg8+lg5×lg20+(lg2)² 2lg5+lg20=?lg5*lg20=? 化简lg25+2/3lg8+lg5×lg20+(lg^2)2 lg25+2/3lg8+lg5×lg20+(lg^2)2 (1) lg5+lg20+(lg2)^2 (2)2^3+log2^5 lg25+2/3lg8+lg5*lg20+(lg2)^2 lg25+2/3lg8+lg5*lg20+lg²2 （lg2）^2+lg25+2/3lg8+lg5*lg20=? lg25+2/3lg8+lg5*lg20+（lg2）^2=?