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9th Class Mathematics Polynomials Question Bank Polynomials

  • question_answer
    If the area of rectangle is 3x2 + 6xy + 3y2 and its breadth is \[\mathbf{x+y,}\]then its length is

    A)  \[x-2y\]                        

    B)  \[-x+2y\]         

    C)  \[3x+3y\]   

    D)  \[x+y\]

    Correct Answer: C

    Solution :

    (c): Area of rectangle \[=3{{x}^{2}}+6xy+6{{y}^{2}}\] \[=(3x+3y)(x+y)\therefore l=3x+3y\]


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