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10th Class Mathematics Polynomials Question Bank MCQs - Polynomials

  • question_answer
    If one of the zeroes of the quadratic polynomial \[b{{x}^{2}}+cx+d\] is 0, then the other zero is:

    A) \[-\frac{b}{d}\] 

    B) \[-\frac{c}{b}\]

    C) \[\frac{b}{d}\]

    D) \[\frac{c}{b}\]

    Correct Answer: B

    Solution :

    [b] Let \[\alpha ,\beta \] be the zeroes of \[b{{x}^{2}}+cx+d.\]
    \[\therefore \]    Sum of zeroes \[=-\frac{c}{b}\]
    Now,    one zero = 0                          [Given]
    \[\therefore \]        Other zero\[=-\frac{c}{b}\]


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