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< Mentor Note -- thread moved to HH from the technical math forums, so no HH Template is shown >

(A+B)&(C+D) + (A+B)&(C+D)' + C

(A+B)&(C+D) + (A+B)&(C'&D') + C by deMorgans

(A+B)&[(C+D)+(C'&D')] + C by Distributive

I'm just wondering if I did anything wrong in this simplification or if it can be simplified any further.

(A+B)&(C+D) + (A+B)&(C+D)' + C

(A+B)&(C+D) + (A+B)&(C'&D') + C by deMorgans

(A+B)&[(C+D)+(C'&D')] + C by Distributive

I'm just wondering if I did anything wrong in this simplification or if it can be simplified any further.

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