E maths indices

10a^1/3 divide by 5a^-2/3

i can't seem to get the ans at the back which is 2a

wah lau... everyone start one thread on E maths ah -.-"

10a^1/3 / 5a^-2/3

= 2 a^[1/3 -(-2/3)]

= 2a

omg i tot cannot be divided like that
and i go do so many steps -_-

thx eagle

wah lao. this is damn basic lor. no offence anyway.