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What is the coefficient of x^2 in the expansion of (2x + 5)^4?

Practice Questions

1 question
Q1
What is the coefficient of x^2 in the expansion of (2x + 5)^4?
  1. 60
  2. 80
  3. 100
  4. 120

Questions & Step-by-step Solutions

1 item
Q
Q: What is the coefficient of x^2 in the expansion of (2x + 5)^4?
Solution: Using the binomial theorem, the coefficient of x^2 in (2x + 5)^4 is given by 4C2 * (2)^2 * (5)^2 = 6 * 4 * 25 = 600.
Steps: 0

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