Implementing a simple logic equation
Try making the final NOR gate, whose output is G(0), into a NAND, since this is a sum of products expression. If you use DeMorgan's law, you'll then see that you have two AND gates feeding into an OR, which is your original expression.







simulate this circuit &ndash; Schematic created using CircuitLab

The inverters can be NOR or NAND, as both perform the same inverter function here.