# Implementing boolean function using OR-NAND and NOR-OR

This is the boolean function: F(A,B,C,D) = Σ (0,4,8,9,10,11,12,14) and so after using a K-map to minimize it, I came out with F(A,B,C,D) = C'D' + AB' + AD'. Now the other two parts of the problem were representing it with AND-NOR gates and NAND-AND gates which I knew how to do. How do I do it with OR-NAND gates and NOR-OR gates?

Do I simply look for 0's in the karnaugh map and write a minimized boolean expression for 0's and then negate it? I'm very much confused by how to do this with OR and NAND gates. Any help appreciated.