Preference

Question:

(2x + 2y + x2 - y2)/(x + y) =?

  1. a.

    (x - y)/(x + y)

  2. b.

    (x - y)2/(x + y)

  3. c.

    x - y

  4. d.

    2(x - y)

  5. e.

    None of these

Answer: e
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