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    Question

    Solve: x + y = 7; x - y = 1, and then find

    x2 + y2
    A 25 Correct Answer Incorrect Answer
    B 15 Correct Answer Incorrect Answer
    C 32 Correct Answer Incorrect Answer
    D 35 Correct Answer Incorrect Answer

    Solution

    ATQ, Add equations: 2x = 8 x = 4 Then y = 3 So, x^2 + y^2 = 16 + 9 = 25

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