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    Question

    What is the nature of the roots of the quadratic

    equation x² – 5x + 7 = 0 ? 
    A Not real Correct Answer Incorrect Answer
    B Real, rational, equal Correct Answer Incorrect Answer
    C Real, irrational, unequal Correct Answer Incorrect Answer
    D Real, rational, unequal Correct Answer Incorrect Answer

    Solution

    ATQ, To find the nature of the roots of the quadratic equation: Use the discriminant formula:

    Here, a = 1 b = −5 c = 7

    Since D<0, the roots are Not real

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