- #1

- 442

- 0

^{2/3}- x

^{1/3}- 2 = 0

So the first thing I did was: x

^{2/3}- x

^{1/3}= 2

Then, I put both sides to the power of three, so I got:

x

^{2}- x

^{1}= 8

From there I factorized: x (x - 1) =8

And got the answers: x = 8 or x = 9, the book however, says the correct answers are -1 and 8.

Any help?

Thanks in advance,

Peter G.