Combinational Logic Analysis Questions

• Using the universal property of a NAND gate, one or more NAND gates can be used to replace an ________.
• Assume you have A, B, C, and D available but not their complements. The minimum number of 2-input NAND gates required to implement the equation is ________.
• A node is defined as ________.
• The expression can be directly implemented using only ________.