Help me solve this

 

Help me solve this

Why do you need it solved (self-imposed design problem, homework, work project, trivia question on a game show, ...)

What have you tried so far?

 

This is an incredible answer!

 

(A+B+C) * (A+B+C') = (A+B)*(A+B) + (A+B)(C + C') + C*C' = (A+B) + (A+B) = A+B

Using the same approach for the rest of your problem.

 

Help me solve this

Is this homework? Sure looks like it.

If you show YOUR best effort, we are in a much better position to help you get the rest of the way.

Why do you want to stop at four literals?