I Block Diagram manipulation

Hello I hope someone can help me, as i am kinda stuck for the moment.
As you can see, the assignment states that I need to find the poles from the closed loop transfer function.

I plan on doing so, by using block diagram reduction method.

241902



241903



This is as fare as i've come, and can't come further, even though I am pretty sure that it is possible. The summation point confuses me, how do I remove it? I could remove the feedback loop, but the summation point would still be there, or am I wrong?

Any help would be nice.
 

WWGD

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@Hraabo,
There is a section here specially for EE. It may be better to post it there.
 
Is that so? Maybe Someone Can Move the post then?

And Sorry for the trouble
 

WWGD

Science Advisor
Gold Member
3,930
1,650
No problem, I told a mentor, he should be having a look at it soon.
 
Bump - No help? :S
 

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