请问,2lg^2+lg^2 5+3lg2lg5—lg2=?
请问,2lg^2+lg^2 5+3lg2lg5—lg2=?
2lg²2+lg²5+3lg2lg5-lg2
计算:lg³2+lg³5+3lg2lg5
lg^2 5+lg2*lg5+lg2=?
lg²2+lg2×lg5+lg²5=?
(lg²2-lg2*lg5+lg²)+3lg2*lg5
1.lg²5+lg2×lg5+lg2 2.(lg2)³ +(lg 5)³ +3lg 2×l
lg(x^2-3)=lgx+lg2
lg(x-1)+lg(x+4)=lg2+1/2 lg(x^2+3x-1)
lg2×lg5=?lg2×lg5=lg?求问号..是lg(2+5)吗?
2(lg2)^2+(lg5)^2+3lg2lg5-lg2=
计算lg²5+lg2·lg25+lg²2