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Stolb23 [73]
3 years ago
9

1. What is the fourth term in the expansion of (x + 4y)^6?

Mathematics
1 answer:
aev [14]3 years ago
7 0
For the fourth term r = 3
Fourth term = 6C3(x)^(6 - 3) (4y)^3 = 20x^3 (64y^3) = 1,280x^3y^3
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