(x²yz⁴)¯³ –––––– (xyz)²

[tex] \frac{ x^{-6} y^{-3} z^{-12} }{ x^{2} y^{2} z^{2} } \\ \\ = x^{-6 - 2} y^{-3-2} z^{-12-2} \\ \\ = x^{-8} y^{-5} z^{-14} [/tex]