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19 May, 14:01

Simplify 3 (3x-1) ^2=21

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Answers (2)
  1. 19 May, 14:11
    0
    27x^2-3=21

    27x^2=24

    the answer is 27x^s=24

    that is my work up there
  2. 19 May, 14:22
    0
    3 (3x-1) ^2=21

    (3x-1) ^2 = 7

    3x-1 = square root of 7

    3x = square root of 7 - 1

    x = (square root of 7 - 1) / 3
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