9th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-13

  • question_answer
    Factorise: \[25{{y}^{4}}+65{{y}^{2}}+42\]

    A)  \[(5{{y}^{2}}+6)\,\,(5{{y}^{2}}+7)\]

    B)  \[(5y+1)\,\,(3{{y}^{3}}+1)\]

    C)  \[(5{{y}^{2}}+7)\,\,(7{{y}^{2}}+6)\]           

    D)  \[(5{{y}^{2}}+6)\,\,(5+y)\]

    E)  None of these

    Correct Answer: A

    Solution :

     Not Available   


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