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

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

User Pratiklodha
by
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1 Answer

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
User Federico Razzoli
by
7.9k points
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