Answer:
[tex]\large\boxed{\dfrac{y^2}{7}}[/tex]
Step-by-step explanation:
[tex]\dfrac{y^2-2y}{7}\div\dfrac{y-2}{y}=\dfrac{y(y-2)}{7}\cdot\dfrac{y}{y-2}\\\\\text{cancel}\ (y-2)\\\\=\dfrac{y}{7}\cdot\dfrac{y}{1}=\dfrac{y^2}{7}[/tex]
