Hi all - I am having some difficulty with some of my Computer Architecture homework.

7. Simplify the following expressions and implement them with NOR gates (1 point)

a. AB + ABD + ABD+ACD+ABC
b. BD + BCD + ABCD

Now - I understand that if I were to draw the original equation and the simplified equation I should get the same answer - so I will wait to simplify before drawing.

Here is what i've done for A, I am not sure if I am on the right track.
AB + ABD + ABD+ACD+ABC
A(B+BD+BD+CD+BC) // BD+BD = BD, removing that.
A(B+BD+CD+BC)
A(B(1+D)+C(D+B)

But that is as far as I can get.. thanks for any help.

Try fiddling with the equations some more. Also note that 1+D=D.

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