Question

x^6+x^4
_______
x^4+x^2



x^6-x^8
_______
x^4-x^2

Answer 1

(х^4 (х^2 +1))/( х^2 (х^2 +1))=х^2
(х^6 (1-х^2))/(х^2 (х^2-1))=-х^4