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29 November, 10:28

Which of the following constants can be added to x^2 - 10x to form a perfect square trinomial?

10

25

100

+5
Answers (2)
  1. 29 November, 13:34
    0
    Halve middle term

    -10/2=-5

    squaer it

    (-5) ^2=25

    that is what should be added

    answer is 25
  2. 29 November, 13:52
    0
    b) - 25 is the correct answer.

    I just did this exact question in my schooling.
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