Find the coefficient of \( a^{4} \) in the expansion of the product \( (1+2 a)^{4}(2-a)^{5} \). P W VIDEO
Find the coefficient of \( a^{4} \) in the expansion of the product \( (1+2 a)^{4}(2-a)^{5} \).https://bit.ly/YTAI_PWAP https://www.pw.live
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