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9 March, 15:54

Factor completely.

4x^2 + 36xy + 81y^2

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Answers (1)
  1. 9 March, 17:57
    0
    (2x + 9y) ^2

    Step-by-step explanation:

    First: rewrite

    2x^2 + 2 * 2x * 9 + (9y) ^2

    Then: (2x + 9y) ^2
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