# How do you simplify 3x^-2y^-4 and write it using only positive exponents?

$3 {x}^{- 2} {y}^{- 4} = \textcolor{g r e e n}{\frac{3}{{x}^{2} {y}^{4}}}$
In general ${a}^{- e} = \frac{1}{{a}^{e}}$