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6th Class Mathematics Sample Paper Maths Olympiad Model Test Paper-8

  • question_answer
    What should be subtracted from \[(6{{x}^{2}}+9{{y}^{2}}-5xy)\] to get \[(-{{x}^{2}})\,\,?\]

    A)  \[(7{{x}^{2}}-9{{y}^{2}}-5xy)\]       

    B)  \[(7{{x}^{2}}+9{{y}^{2}}-5xy)\]

    C)  \[(7{{x}^{2}}+9{{y}^{2}}+5xy)\]   

    D)  All of these

    E)  None of these

    Correct Answer: B

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