Răspuns :
125^42 : 25^63 = 5^126 : 5^126 = 1
125 = 5^3
125^42= (5^3)^42 = 5^126
25^63 = (5^2)^63 = 5^126
125⁴²=(5³)⁴²=5³ˣ⁴²=5¹²⁶
25⁶³=(5²)⁶³=5²ˣ⁶³=5¹²⁶
5¹²⁶:5¹²⁶=1
sau
5¹²⁶:5¹²⁶=5¹²⁶⁻¹²⁶=5⁰=1
a⁰=1
a¹=a
aⁿ*aᵇ=aⁿ⁺ᵇ
aⁿ:aᵇ=aⁿ⁻ᵇ
(aⁿ)ᵇ=aⁿˣᵇ
125^42 : 25^63 = 5^126 : 5^126 = 1
125 = 5^3
125^42= (5^3)^42 = 5^126
25^63 = (5^2)^63 = 5^126
125⁴²=(5³)⁴²=5³ˣ⁴²=5¹²⁶
25⁶³=(5²)⁶³=5²ˣ⁶³=5¹²⁶
5¹²⁶:5¹²⁶=1
sau
5¹²⁶:5¹²⁶=5¹²⁶⁻¹²⁶=5⁰=1
a⁰=1
a¹=a
aⁿ*aᵇ=aⁿ⁺ᵇ
aⁿ:aᵇ=aⁿ⁻ᵇ
(aⁿ)ᵇ=aⁿˣᵇ