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12-78.
  1. Multiple Choice: Which of the following expressions is equivalent to x2 − 12x + 40? Homework Help ✎

    1. (x − 6)2 + 4

    2. (x − 6)2 + 28

    3. (x − 12)2 + 4

    4. (x −12)2

Multiply out each expresssion.

(x − 6)2 + 28
x2 − 12x + 36 + 28

(a)