- #1
Peter G.
- 442
- 0
The question is x2/3 - x1/3 - 2 = 0
So the first thing I did was: x2/3 - x1/3 = 2
Then, I put both sides to the power of three, so I got:
x2 - x1 = 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.
So the first thing I did was: x2/3 - x1/3 = 2
Then, I put both sides to the power of three, so I got:
x2 - x1 = 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.