# Math Help - Help needed

1. ## Help needed

Write as a single power. Express answers with posative exponents.

[(-8)^6]^-2
------------
[(-8)^-4]^3

If anyone could help I would greatly appreciate it.

2. Originally Posted by Aerillious
Write as a single power. Express answers with posative exponents.

[(-8)^6]^-2
------------
[(-8)^-4]^3

If anyone could help I would greatly appreciate it.
$\frac {\left[ (-8)^6 \right]^{-2} }{\left[ (-8)^{-4} \right]^3} = \frac {(-8)^{-12}}{(-8)^{-12}}$ .............since $(x^a)^b = x^{ab}$

so this is just $1$

i hate questions that have answers like that, it cuts the teaching lesson short. we didn't even get to use the fact that $\frac {x^a}{x^b} = x^{a - b}$