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

• December 16th 2008, 04:10 PM
HappyFeet
Can some one break this down and help me solve. Im so lost...
Simplify the root:

-18^ sqrt(-8)^18
• December 16th 2008, 06:54 PM
Rapha
Hi.

Quote:

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
• December 16th 2008, 07:52 PM
HappyFeet
Hi,

(Hi)I have added an attachment with the actual problem.
Thanks!!!
• December 16th 2008, 07:59 PM
mr fantastic
Quote:

Originally Posted by HappyFeet
Hi,

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

$-\sqrt[18]{ (-8)^{18}} = - [ (-8)^{18} ]^{1/18} = -(-8)^1 = 8$.