1) 2^3 .2 -7 = 2^4 -7 = 16-7 = 9
2) 2^2 .2^5 = 2^7= 128
3) (-2)^3 .2 = -8. 2 = -16
4) (-2)^2 . 2^2 = 4. 4 = 16
5) (2^3)^2 = 2^6= 64
6) 2^(-2) -3= 1/4 -3 = -11/4
7) (2^2)-3= 4-3= -1
8) 25. 2^(-3) = 25. 1/8= 25/8
9) (-2)^2 .2^3 = = 4. 8 = 32
10) ((-2)^2)^3 = 4^3= 64
11) (2^3)^(-2) = 8^(-2)= 1/64
12) (2x)^5= 32.x^5
13) (2/3x)^3= 8. 27x
14) 25/2^5 = 25/32
15) (-2)^5 .2^4 = -32 . 16= -512
16) -2^5 .2^4= -32.16= -512
