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16 February, 20:59

Simplify-- - (3q+9) ^2

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Answers (2)
  1. 16 February, 21:46
    0
    I think it is 3q^2+81
  2. 16 February, 23:07
    0
    (3q+9) ^2

    (3q+9) (3q+9)

    FOIL

    3q*3q + 3q*9 + 9*3q + 9*9

    9q^2 + 27q+27q + 81

    9q^2 + 54q+81
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