Don’t Cares treated as ‘0’s or ‘1’s

AB

01

0

0

0

0

00

CD

00

1

0

1

1

01

11

10

X

0

X

0

X

X

X

X

11

10

Treat X’s as 1’s when can get a larger grouping. All X’s do not have to be covered.

F(A,B,C,D) = CD’ + B’C

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