lg5*lg5 是(lg5)^2还是lg(5^2)还是lg10

lg5*lg5 是(lg5)^2还是lg(5^2)还是lg10 (lg^2)2+lg2*lg5+lg5 lg²2+lg2×lg5+lg5 是表示lg2乘lg5还是表示lg（2lg5）? (lg²2-lg2*lg5+lg²)+3lg2*lg5 lg2×lg5=?lg2×lg5=lg?求问号..是lg（2+5）吗? lg5+lg5+lg5=? lg5^2+2/3lg8+lg5*lg20+lg^2 lg²2+ lg2*lg5+ lg5的值 lg²2+lg2·lg5+lg5=____________ 求值lg的平方2+lg2乘lg5+lg5 lg5(1-lg5)+2lg5根号2+lg2(1-lg5) (lg5)^+lg 2 x lg 50=? lg2(1+lg5)+(lg5)^2 计算：(lg5)^2 +lg2 *lg5 lg4+lg5.lg20+(lg5)2 lg4+lg5.lg20+(lg5)2 (lg5)^2+lg5.lg2=