作业帮化简 (lg5)^2+(lg2)lg50
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化简 (lg5)^2+(lg2)lg50
化简 (lg5)^2+(lg2)lg50
化简 (lg5)^2+(lg2)lg50
(lg5)^2+(lg2)lg50
=(lg5)^2+(lg2)lg5*10
=(lg5)^2+(1-lg5)(lg5+1)
=(lg5)^2+[1-(lg5)^2]
=1
(lg5)^2+lg2*lg50
=(lg5)^2+lg2(lg5+1)
=lg5(lg5+lg2)+lg2
=lg5+lg2
=1
化简 (lg5)^2+(lg2)lg50
（lg5)^2+lg2*lg50
lg2*lg50+lg5*lg20-2lg5*lg2
lg5²+lg2*lg50化简
(lg5)^2+lg2*lg50 求值
(lg5)^2+lg2×lg50=?
(lg5)^2 + (lg2)*(lg50)=
(lg5)^2+lg2*lg50=
lg50+lg2*lg5+(lg2)^2=
问道对数题 lg2*lg50+lg20*lg5-2lg5*lg2
化简 lg2×lg50+lg25-lg5×lg20
计算（lg5)^2+lg2·lg50
1.（lg5）2次方+lg2*lg50
计算:(lg5)2+lg2*lg50=?
lg50+lg2*lg5+lg²2=?
(lg5)^2+lg2·lg50=?求救...
（lg5)²+lg2×lg50
计算(lg2)²+2lg2·lg5+(lg5)²+lg50－lg5求答案,