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27 February, 16:37

What are Factor pairs of 21 x squared

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Answers (2)
  1. 27 February, 19:11
    0
    21x^2

    you CAN'T factor 21x^2
  2. 27 February, 19:19
    0
    1 * 21 and 3 * 7 are the only factors of 21

    You can match these up with the x^2 or have one x with each factor.

    x * 21x

    3x * 7x

    x^2 * 21

    1 * 21x^2

    3 * 7x^2

    3x^2 * 7
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