lg5 (lg8+lg1000)+(lg2 )(lg2 )+lg0.06+lg1/6
=lg5 (3lg2+3)+(lg2 )(lg2 )+lg0.06*1/6
=3lg5+3lg2lg5+lg2lg2+lg0.01
=3lg5+2lg2lg5+lg2(lg2+lg5)-2=3lg5+2lg2lg5+lg2-2
=2lg5+2lg2lg5-1=2lg5(lg2+lg5)-1=2lg5-1
lg5 (lg8+lg1000)+(lg2 )(lg2 )+lg0.06+lg1/6
=lg5 (3lg2+3)+(lg2 )(lg2 )+lg0.06*1/6
=3lg5+3lg2lg5+lg2lg2+lg0.01
=3lg5+2lg2lg5+lg2(lg2+lg5)-2=3lg5+2lg2lg5+lg2-2
=2lg5+2lg2lg5-1=2lg5(lg2+lg5)-1=2lg5-1