Mathematics, 26.06.2020 15:01 gora2005

find the coefficient of x^3 in the expansion of (9 + 8x) 1 - x/3)^9 please help me out! thanks in advance!

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find the coefficient of x^3 in the expansion of (9 + 8x) 1 - x/3)^9 please help me out! thanks in ad...