Question

I have no idea how to solve this. Plz explain
http://i.imgur.com/Hw0Ch.png

Answer 1

I'm assuming you need to multiply both the top and bottom by the numerator's conjugate.

Answer 2

uhhh...

Answer 3

you can factor something out from the numerator

Answer 4

\[\Large 3(1+x)^{\frac 13} - x(1+x)^{\frac 23} \implies (1+x)^{\frac 13} (3 - x(1+x)^{\frac 13})\]
does that help?

Answer 5

what happens to the 2/3 exponent??

Answer 6

ohhh i see

Answer 7

so now... can you solve the whole expression?

Answer 8

so is it \[\left( 1+x \right)^{2/3}3-x / 1\]