(2)4^(3/2)=8; 3^ 1=3; 7^0= 1; 2^(- 1/3)= 1/8;

(3)2; 1/2; -7; - 1;

(4)x=2^4= 16； x = 8； x = 1/4； x =√ 10/ 10；

(5)0. 12 0.38

0.90 0.73

1.0 0.66

The common logarithmic value of positive numbers less than 10 is less than 1, and the logarithmic value increases with the increase of real numbers.