8th Class Mental Ability Algebraic Expressions Question Bank Algebra

  • question_answer
    Divide \[\left( \mathbf{2}{{\mathbf{x}}^{\mathbf{3}}}\mathbf{-5}{{\mathbf{x}}^{\mathbf{2}}}\mathbf{+8x-5} \right)\,\,\mathbf{by}\,\,\left( \mathbf{2}{{\mathbf{x}}^{\mathbf{2}}}\mathbf{-3x+5} \right)\] and find the quotient.

    A) \[x+5\]                 

    B)                    \[x+4\]                                     

    C)                    \[x-1\]   

    D)        \[x+2\]

    E) None of these

    Correct Answer: C

    Solution :

    Explanation Option [c] is correct. \[2{{x}^{2}}-3x+5\overset{x-1\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\overline{\left){\begin{align}  & 2{{x}^{3}}-5{{x}^{2}}+8x-5 \\  & \underline{\pm 2{{x}^{3}}\mp 3{{x}^{2}}\pm 5x} \\  & \,\,\,\,\,\,\,\,\,\,\,\,\,\,-2{{x}^{2}}+3x-5 \\  & \,\,\,\,\,\,\,\,\underline{\mp 2{{x}^{2}}\pm 3x\mp 5} \\  & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\underline{0} \\ \end{align}}\right.}}\]            


You need to login to perform this action.
You will be redirected in 3 sec spinner