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    Question

    If 'x' = тИЪ5, then find the value of (x - 2)┬▓ + (x +

    2)┬▓.
    A 18 Correct Answer Incorrect Answer
    B 20 Correct Answer Incorrect Answer
    C 24 Correct Answer Incorrect Answer
    D 28 Correct Answer Incorrect Answer

    Solution

    (x - 2)┬▓ + (x + 2)┬▓ = x┬▓ - 4x + 4 + x┬▓ + 4x + 4 = 2x┬▓ + 8 = 2 X (тИЪ5)┬▓ + 8 = 2 X 5 + 8 = 10 + 8 = 18

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