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    Question

    If a + b + c = 5 and ab + bc + ca = 7, then the value of

    a³ + b³ + c³ – 3abc is:
    A 15 Correct Answer Incorrect Answer
    B 20 Correct Answer Incorrect Answer
    C 25 Correct Answer Incorrect Answer
    D 30 Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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