A linear time invariant system. Realize the system in Direct form 1 and Direct form 2

Описание: A linear time invariant system is described by the following input output relation
𝟐𝒚(𝒏)−𝒚(𝒏−𝟐)−𝟒𝒚(𝒏−𝟑)=𝟑𝒙(𝒏−𝟐)
Realize the system in the following forms
Direct form 1 realization
Direct form 2 realization