Question 301900
y^(2)+7y-(18)/(y^(2))+2y-63
y^(2)+9y-(18)/(y^(2))-63
y^(2)*(y^(2))/(y^(2))+9y*(y^(2))/(y^(2))-(18)/(y^(2))-63*(y^(2))/(y^(2))
(y^(4))/(y^(2))+(9y^(3))/(y^(2))-(18)/(y^(2))-(63y^(2))/(y^(2))
(y^(4)+9y^(3)-18-63y^(2))/(y^(2))


(y^(4)+9y^(3)-63y^(2)-18)/(y^(2))