How do you factor this boolean equation $A'B'CD+AB'CD'+AB'C'D+ABCD$ I need help with where do I start from. What are the factors?
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$\begingroup$Hint: Draw the complement of the Karnaugh map corresponding to the given equation. Obtain a minimal sum of products, then apply DeMorgan's Law to this complement expression to obtain a minimal product of sums.
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