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Math Help - Please find coefficient

  1. #1
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    Please find coefficient

    Please find coefficient of x^4 in the expansion of (2x+y)^8
    {8\choose4}(2x)^4y^4=70*16x^4y^4= 1120x^4y^4

    The answer the coefficient is 1120

    Will you please check it and correct if it's wrong.

    Thank you
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by oceanmd View Post
    Please find coefficient of x^4 in the expansion of (2x+y)^8
    {8\choose4}(2x)^4y^4=70*16x^4y^4= 1120x^4y^4

    The answer the coefficient is 1120

    Will you please check it and correct if it's wrong.

    Thank you
    you mean the coefficient of the x^4-term. yes, it's ok
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