8th Class Mathematics Algebraic Expressions Question Bank Algebra

  • question_answer
    The additive inverse of \[=-8+4-4+3=-12+7=-5\]is

    A)  \[\Rightarrow \]          

    B)  \[P(-a)=0\]

    C)  \[P(x)={{x}^{3}}-3{{x}^{2}}+4x-12\] 

    D) none of these

    Correct Answer: C

    Solution :

    Let y be the additive inverse of \[{{\left( \frac{a+b}{a-b} \right)}^{2}}\]. Then, \[\frac{{{x}^{5}}-7{{x}^{2}}+18}{{{x}^{3}}-2}+Y=0\]  \[\Rightarrow \]\[y=\frac{-{{x}^{5}}+7{{x}^{2}}-18}{{{x}^{3}}-2}\]


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