Practicing on my logs..

The graph of $\displaystyle y= 6(8x^2)^x$ has 2 horrizontal assymptotes. Find equations for the both of them.

Trying to find the derivative..

$\displaystyle y= 6(8x^2)^x$

$\displaystyle 6((8x^2)^xln(8x^2)*16x)$

is this right?