[ x² / (yz5) ](1/3) · z
To rationalize the denominator under the radical sign, multiply the numerator and the denominator by y²z:
[ x²·y²z / (yz5·y²z) ](1/3) · z
= [ x²·y²z / (y3z6) ](1/3) · z
= (x²·y²z)1/3 / (yz²) · z
= (x²·y²z)1/3 / (yz)
Is this your intended question Alisson?
$$\\\sqrt3\times \dfrac{x^2}{yz^5}\times z\\\\\\
=\sqrt3\times \dfrac{x^2}{yz^4}\\\\\\
=\dfrac{\sqrt{3}\;x^2}{yz^4}\\\\\\$$
or do you mean
$$\sqrt[3]{x^2/yz^5)}\times z\\\\\\
=\sqrt[3]{\dfrac{x^2}{yz^5}}\times z\\\\\\
=\dfrac{x^{2/3}}{y^{1/3}z^{5/3}}\times z\\\\\\
=\dfrac{x^{2/3}}{y^{1/3}z^{3/3}z^{2/3}}\times z\\\\\\
=\dfrac{x^{2/3}}{y^{1/3}z^{2/3}}\\\\\\
=\sqrt[3]{\dfrac{x^{2}}{yz^{2}}}\\\\\\$$
I think Geno's answer is another presentation of this. I am sure it is correct to.