Answer:
[tex]\sqrt{y} -y^{2} \sqrt{y}[/tex]
Step-by-step explanation:
[tex]y^{\frac{1}{2} }- y^{\frac{5}{2} }=\sqrt{y}-\sqrt{y^{5} }=\sqrt{y}-\sqrt{y*y*y*y*y}=\sqrt{y}-\sqrt{y^{2}*y^{2}*y} = \sqrt{y} -y*y*\sqrt{y} =\sqrt{y} -y^{2} \sqrt{y}[/tex]
