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29 September, 09:22

Solve by taking the square root of both sides.

3 (x + 3) ^2 - 81 - 0

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Answers (1)
  1. 29 September, 09:53
    0
    x = 2.20

    Step-by-step explanation:

    3 (x+3) ^2 = 81

    (x+3) ^2 = 81/3

    (x+3) ^2 = 27

    x+3 = 5.20

    x = 5.20 - 3

    x = 2.20
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