What's the coefficient of the $x^2y^4$ term in the expansion of $(x+y)^6$?
Question:
What's the coefficient of the $x^2y^4$ term in the expansion of $(x+y)^6$?
Answer:
Let's think step by step.

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What's the coefficient of the $x^2y^4$ term in the expansion of $(x+y)^6$?
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