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5 November, 22:45

What number must be added to the expression below to complete the

square?

х2 - 20 х

+4
Answers (1)
  1. 6 November, 02:31
    0
    100

    Step-by-step explanation:

    This is formula fot completing the square:

    (b/2) ^ (2)

    (-20/2) ^ (2)

    100
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