Question

    √(3x-2)+ √(3x+2) = 4+ 2√5  then value of x

    is.
    A 6 Correct Answer Incorrect Answer
    B 7 Correct Answer Incorrect Answer
    C 3 Correct Answer Incorrect Answer
    D 4 Correct Answer Incorrect Answer

    Solution

    √(3x-2)+ √(3x+2) = 4+ 2√5 Squaring on both sides, = or or So by comparing the constant part of LHS & RHS, 6x = 36 or x = 6.

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