Question

pls do it step by step

Answer 1

See u need to take prime factors of it
108 can be written as 27*4= 3*3*3*2*2
As it is cube root u need to make triplets 
now for a raised to power four= a*a*a*a
for b raised to power 3= b*b*b

Therefore cube root of 3*3*3*2*2*a*a*a*a*b*b*b
= 3ab∛4a