- #1

colerelm

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## Homework Statement

Convert the logic circuit to an equivalent circuit constructed from 2-input NAND gates and NOT gates.

http://imgur.com/EzOBdbv

## Homework Equations

Pretty sure the boolean equation is:

A & (~(~B+C)+~D + E)

## The Attempt at a Solution

I know for sure that ~A + ~B = ~AB so I was trying to add an inverter to the input of each OR gate to try to make use of this equation but I get stuck at the spot where I need to convert a 3-input OR gate to a two input NAND gate. Can anyone please help?