Wykonaj działania:
[y^3:(y^2*y^{-3})]^2:(y^3)^2
źródło:
[y^3:(y^2*y^{-3})]^2:(y^3)^2=
=[y^3:(y^{-1})]^2:y^6=
=[y^{3-(-1)}]^2:y^6=
=[y^4]^2:y^6=y^8:y^6=y^2