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10th Class Mathematics Quadratic Equations Question Bank Quadratic Equations

  • question_answer
    Which of the following quadratic polynomials can be factorized into a product of real linear factors?

    A)  \[2{{x}^{2}}-5x+9\]        

    B)         \[2{{x}^{2}}+4x-5\]

    C)  \[3{{x}^{2}}+4x+6\]       

    D)        \[5{{x}^{2}}-3x+2\]  

    Correct Answer: B

    Solution :

     Except for the equation in option [b] all options have discriminant < 0 and hence cannot have real linear factors.


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