Here is the truth table for a function with two inputs and two outputs:

HINT: for the questions below worry about each output separately $-$ that is$,$ figure out an expression for $F_1,$

then put that aside and figure out an expression for $F_2.$ Look at the truth tables of the different operators

for some ideas. You may implement both $F_1$ and $F_2$ at the same time.

a$.F_1{F}_2{F}_1{F}_2{F}_1{F}_2{F}_1{F}_{2}ao+b=(a^{\text{'}}*b)+(a*b^{\text{'}})F_1{F}_2$