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The expansion of (1+x)⁸ is arranged in ascending powers of x, if the value of 4th term is 7, find the value of x.?

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  • Mike G
    Lv 7
    2 years ago
    Favorite Answer

    Binomial expansion

    1 + 8C1*x + 8C2*x^2+8C3*x^3......

    4th term = 56x^3 = 7

    x = ³√[7/56] = ³√ [1/8]

    x = 1/2

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