Answer:
x² / y
Step-by-step explanation:
x⁵* y³* z / x³* y⁴*z = (x⁵⁻³ ) * (z¹⁻¹ ) / y⁴⁻³
= (x² * z⁰) / y¹ {z⁰ = 1}
=x²/ y