Răspuns:
a) = 3⁴ˣ⁷=3²⁸
b) = 13⁸ˣ⁹=13⁷²
c) = 17³ˣ¹⁸=17⁵⁴
d) = 7¹¹ˣ⁴=7⁴⁴
e) = 16⁸ˣ⁶=16⁴⁸=(2⁴)⁴⁸=2¹⁹²
f) = 5⁴ˣ³=5¹²