# How do you write x^2 y^-4 z^4 with a positive exponent?

$\frac{{x}^{2} {z}^{4}}{y} ^ 4$
${x}^{2} {y}^{- 4} {z}^{4}$
In order to have all positive exponents, ${y}^{- 4}$ must be placed in the denominator.
$\frac{{x}^{2} {z}^{4}}{y} ^ 4$