# Math Help - Can some one break this down and help me solve. Im so lost...

1. ## Can some one break this down and help me solve. Im so lost...

Simplify the root:

-18^ sqrt(-8)^18

2. Hi.

Originally Posted by HappyFeet
Simplify the root:

-18^ sqrt(-8)^18
Sorry, what exactly is the question?

$- 18^{\sqrt{-8}^{18}} = - 18^{{(-8)^{18/2}}} = - 18^{(-8)^{9}}$

$= - \frac{1}{18^{8^{9}}}$

...

Regards, Rapha

3. Hi,

I have added an attachment with the actual problem.
Thanks!!!

4. Originally Posted by HappyFeet
Hi,

I have added an attachment with the actual problem.
Thanks!!!
$-\sqrt[18]{ (-8)^{18}} = - [ (-8)^{18} ]^{1/18} = -(-8)^1 = 8$.