New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    I. 35 y² + 58 y + 24 = 0 II. 21 x² + 37

    x + 12 = 0
    A if x>y Correct Answer Incorrect Answer
    B if x≥y Correct Answer Incorrect Answer
    C if x Correct Answer Incorrect Answer
    D if x≤y Correct Answer Incorrect Answer
    E If x=y or the relationship cannot be established Correct Answer Incorrect Answer

    Solution

    I. 35 y² + 58 y + 24 = 0 35 y² + 30 y + 28 y + 24 = 0 5 y(7 y + 6) + 4 (7 y + 6) = 0 (5 y + 4) (7 y + 6) = 0 y = -4/5, -6/7 II. 21 x² + 37 x + 12 = 0 21 x² + 9 x + 28 x + 12 = 0 3 x (7 x + 3) + 4 (7 x + 3) = 0 (3 x + 4) (7 x + 3) = 0 x = -4/3, -3/7 Hence, relationship cannot be established between x and y.

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