Posted by **Unknown** on Wednesday, August 29, 2012 at 12:14pm.

Help?

1.6x^6/3-5x^1/3-6=0

#Still Don't Understand how to solve this..

- Algebra2 -
**Steve**, Wednesday, August 29, 2012 at 12:31pm
just like the one with x^1/2,

I think you meant to type

6x^2/3 - 5x^1/3 - 6 = 0

can't do it if it is as you typed it.

let u = x^1/3

then you have

6u^2 - 5u - 6 = 0

(3u+2)(2u-3) = 0

u = -2/3 or 3/2

so, x^1/3 = -2/3 or 3/2

x = -8/27 or 27/8

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