Answer:
5^18 in index form is the answer :)
Step-by-step explanation:
(5^3)^6
In a polynomial like this the rule is that,
(a^m)^n
= a^m*n (multiply the exponents)
So let a be 5
m be 3 and n be 6
5^3^6
= 5^3*6
= 5^18
