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12 votes
Which of the following is true?

xy–y–x+1 = (1+x) (1–y)
xy–y–x+1 = (x–1) (y–1)
xy–y–x+1 = (1–x) (y–1)
xy–y–x+1 = (x–1) (1–y)

plz fast

User Rumin
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3.7k points

1 Answer

4 votes

Answer:

The second one

Explanation:

User Jay Rizzi
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