8th Class Mathematics Factorisation Question Bank Factorisation

  • question_answer
    The factors of \[\sqrt{3}{{x}^{2}}+11x+6\sqrt{3}\] are __.

    A)  \[\left( x-3\sqrt{3} \right)\left( \sqrt{3}x+2 \right)\]

    B)  \[\left( x-3\sqrt{3} \right)\left( \sqrt{3}x-2 \right)\]

    C)  \[\left( x+3\sqrt{3} \right)\left( \sqrt{3}x-2 \right)\]

    D)  \[\left( x+3\sqrt{3} \right)\left( \sqrt{3}x+2 \right)\]

    Correct Answer: D

    Solution :

    We have, \[\sqrt{3}{{x}^{2}}+11x+6\sqrt{3}\] \[=\sqrt{3}{{x}^{2}}+9x+2x+6\sqrt{3}\] \[=\sqrt{3}x(x+3\sqrt{3})+2(x+3\sqrt{3})\] \[=(x+3\sqrt{3})(\sqrt{3}x+2)\]


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