Answer:
1. 15625
2. 256
3. 46656 
Explanation:
Simplify the following: 
(5^3)^2 
 
Multiply exponents. (5^3)^2 = 5^(3×2): 
5^(3×2) 
 
3×2 = 6: 
5^6 
 
5^6 = (5^3)^2 = (5×5^2)^2: 
(5×5^2)^2 
 
5^2 = 25: 
(5×25)^2 
 
5×25 = 125: 
125^2 
 
 | | 1 | 2 | 5 
× | | 1 | 2 | 5 
 | | 6 | 2 | 5 
 | 2 | 5 | 0 | 0 
1 | 2 | 5 | 0 | 0 
1 | 5 | 6 | 2 | 5: 
Answer: 15625
_________________________________________
Simplify the following: 
(4^2)^2 
 
Multiply exponents. (4^2)^2 = 4^(2×2): 
4^(2×2) 
 
2×2 = 4: 
4^4 
 
4^4 = (4^2)^2: 
(4^2)^2 
 
4^2 = 16: 
16^2 
 
 | 1 | 6 
× | 1 | 6 
 | 9 | 6 
1 | 6 | 0 
2 | 5 | 6: 
Answer: 256
____________________________________________
Simplify the following: 
(6^2)^3 
 
Multiply exponents. (6^2)^3 = 6^(2×3): 
6^(2×3) 
 
2×3 = 6: 
6^6 
 
6^6 = (6^3)^2 = (6×6^2)^2: 
(6×6^2)^2 
 
6^2 = 36: 
(6×36)^2 
 
6×36 = 216: 
216^2 
 
 | | 2 | 1 | 6 
× | | 2 | 1 | 6 
 | 1 | 2 | 9 | 6 
 | 2 | 1 | 6 | 0 
4 | 3 | 2 | 0 | 0 
4 | 6 | 6 | 5 | 6: 
Answer: 46656