(1)(2
1
4 )
1
2 -(-9.6) 0-(3
3
8 ) -
2
3 +(1.5) -2= (
9
4 )
1
2 -1- (
27
8 ) -
2
3 + (
3
2 ) -2 =
3
2 -1- (
3
2 ) 3×(-
2
3 ) +
4
9 =
3
2 -1-
4
9 +
4
9 =
1
2 .
(2))3 2+lo g 3 2 +lg5 2+
2
3 lg8+lg5•lg20+lg 22= 3 2 ⋅ 3 log 3 2 +2lg5+2lg2+lg5(lg5+lg4)+ lg 2 2
=18+2+lg 25+2lg2lg5+lg 22=20+(lg2+lg5) 2=20+1=21.