ok i have 2 D flip flops and i am having a hard time finding an expression because there are 2 muxes behind them and i have no clue what to do with these stupid muxes

take a look at this pic

 

Perhaps this will help: http://www.play-hookey.com/digital/multiplexer_two_input.html

 

Why exactly are the muxes stupid? They are inanimate objects incapable of either thought or feeling, let alone self awareness.

 

Why exactly are the muxes stupid? They are inanimate objects incapable of either thought or feeling, let alone self awareness.

As far as I'm concerned, muxes are quite intelligent. But they are very selective though.

 

A mux isn't really stupid by nature, it just does stupid things from time to time.

 

I only get a welcome screen on the image hosting site. With multiplexers controlling the state of the D input, the expression will have to express Q as the logic level controlled by the mux.