how to work these 5 problems step by step

Question

x^{3 ×} x³

 

(a⁵)⁴

 

(6x⁴)³

 

(7ab3)²

 

3√54

Answer 1

(x³)(x³)=x³⁺³=x⁶

 

(a⁵)⁴=a^5*4=a²⁰

 

(6x⁴)³=(6³)(x⁴)³=216x¹²

 

(7ab³)²=49a²b⁶

 

3√54=3√9*6=3√9√6=3*3*√6=9√6