1. a)
[tex] {7}^3 - {5}^2 = 343 - 25 = 318 [/tex]
b)
[tex] {477}^1 - {0}^2012 = 477 - 0 = 477[/tex]
c)
[tex] {15 }^{2} - {2}^3 = 225 - 8 = 217[/tex]
d)
[tex] (2 \times 5)^2 = {2}^{2} \times {5}^{2} = 4 \times 25 = 100[/tex]
2.
a) 35^78 > 35^68
b) 17^222 < 18^222
c) 32^32 < 4^181
d) 125^9 > 25^11