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8th Class Mathematics Factorisation Question Bank Factorization

  • question_answer
    Factorization: \[{{\mathbf{x}}^{\mathbf{2}}}-\mathbf{17x}-\mathbf{84}\]

    A)  \[\left( x-3 \right)\left( x+4 \right)\]           

    B)  \[\left( x-21 \right)\left( x+4 \right)\]

    C)  \[\left( x-21 \right)\left( x-4 \right)\]           

    D)  \[\left( x+21 \right)\left( x+4 \right)\]

    Correct Answer: B

    Solution :

    (b): Use same process as in Q9.


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