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18 May, 20:25

Which expressions are perfect square trinomials? Check all that apply.

x2 + 16x + 8

x2 + 14x + 49

x2 - 5x + 25

x2 - 24x + 144

x2 + 9x - 81

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Answers (2)
  1. 18 May, 22:04
    0
    Answer: x^2 + 14x + 49.

    x^2 - 24x + 144.
  2. 18 May, 23:31
    0
    x^2 + 14x + 49.

    x^2 - 24x + 144.

    Step-by-step explanation:

    x^2 + 14x + 49 = (x + 7) ^2

    x^2 - 24x + 144 = (x - 12) ^2
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