What is the coefficient of x^3y^2 in the expansion of (2x+y)^5

asked Jul 19, 2019 213k views

5 votes

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3 votes

5C2 * (2x)^3 * y^2
5 * 4 / 2 * 8 * x ^ 3 * y ^ 2
20 / 2 * 8 * x ^ 3 * y ^ 2
80 * x^3 y^2
Answer = 80

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