作业帮(lg2)³+(lg5)³+3lg2*lg5=
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/08 11:50:13
(lg2)³+(lg5)³+3lg2*lg5=
(lg2)³+(lg5)³+3lg2*lg5=
(lg2)³+(lg5)³+3lg2*lg5=
lg2+lg5=1
(lg2)³+(lg5)³+3lg2*lg5
= (lg2+lg5)[(lg2)²-lg2*lg5+(lg5)²]+3lg2*lg5
=(lg2)²-lg2*lg5+(lg5)²+3lg2*lg5
=(lg2)²+2lg2*lg5+(lg5)²
=(lg2+lg5)²
=1²
=1
结果为1
左式为(lg2+lg5)^3
(lg2)³+3lg2*lg5+(lg5)³等于多少
(lg2)³+(lg5)³+3lg2*lg5=
lg5+lg5*lg2+lg2*lg2
lg2*lg2+lg5-lg2=?
（lg2）³+（lg5）³+3lg5lg2=?不只要结果
1.lg²5+lg2×lg5+lg2 2.（lg2）³ +（lg 5）³ +3lg 2×lg 5 3.7 的lg20次方×4.lg500+lg8/5-1/2lg64+50(lg2+lg5)²1.lg²5+lg2×lg5+lg2 2.（lg2）³ +（lg 5）³ +3lg 2×lg 53.7 的lg20次方×(1/2)的lg0.7次方
lg2(lg5-lg2)-lg5(lg5+3lg2)等于
lg2(1+lg5)+(lg5)^2
计算：(lg5)^2 +lg2 *lg5
(lg5)^2+lg5.lg2=
化简lg5的平方+lg5×lg2+lg2
(lg2)^3+(lg5)^3+3*lg2*lg5
(lg2)³+(lg5)³+3lg2×lg5
lg2*lg50+lg5*lg20-2lg5*lg2
2lg2（lg2+lg5)+2lg5得数
（lg5）²+lg2×lg5+lg2
(lg2)^2+lg2*lg5+(lg5)^2=
数学题(lg2)平方+lg5*lg2+lg5