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What is the 3rd term in the expansion of (x + 3)^7? (2023)

Practice Questions

1 question
Q1
What is the 3rd term in the expansion of (x + 3)^7? (2023)
  1. 189
  2. 441
  3. 729
  4. 1024

Questions & Step-by-step Solutions

1 item
Q
Q: What is the 3rd term in the expansion of (x + 3)^7? (2023)
Solution: The 3rd term is C(7,2) * (3)^2 * (x)^5 = 21 * 9 * x^5 = 189.
Steps: 0

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