12 13 and 14 please. thank you!

12. Find a minimum network to realize F =-BCD + ACD + CDAB + CAB D using only 2-input NOR gates. Only A, B, C and D are available and not their complements. 13. Find a minimum network to realize Y-FEAB +FECE DF + GH using only 2-input NAND gates 14. Consider the function specified by the Karnaugh map below: 01 1 1 10 Realize the function using an 8-to-1 mutiplexer with control inputs A, B and D. Repeat, this time realize the function usin to minimize the number of added gates. a. b. g a 4-to-1 multiplexer. Select the control inputs 12. Find a minimum network to realize F =-BCD + ACD + CDAB + CAB D using only 2-input NOR gates. Only A, B, C and D are available and not their complements. 13. Find a minimum network to realize Y-FEAB +FECE DF + GH using only 2-input NAND gates 14. Consider the function specified by the Karnaugh map below: 01 1 1 10 Realize the function using an 8-to-1 mutiplexer with control inputs A, B and D. Repeat, this time realize the function usin to minimize the number of added gates. a. b. g a 4-to-1 multiplexer. Select the control inputs