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What is the coefficient of x^6 in the expansion of (2x - 1)^8? (2022)

Practice Questions

1 question
Q1
What is the coefficient of x^6 in the expansion of (2x - 1)^8? (2022)
  1. -112
  2. 112
  3. 64
  4. 128

Questions & Step-by-step Solutions

1 item
Q
Q: What is the coefficient of x^6 in the expansion of (2x - 1)^8? (2022)
Solution: The coefficient of x^6 is C(8,6) * (2)^6 * (-1)^2 = 28 * 64 = 1792.
Steps: 0

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