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Determine the coefficient of x^5 in the expansion of (3x - 4)^7.

Practice Questions

1 question
Q1
Determine the coefficient of x^5 in the expansion of (3x - 4)^7.
  1. 252
  2. 336
  3. 672
  4. 840

Questions & Step-by-step Solutions

1 item
Q
Q: Determine the coefficient of x^5 in the expansion of (3x - 4)^7.
Solution: The coefficient of x^5 in (3x - 4)^7 is C(7, 5) * (3)^5 * (-4)^2 = 21 * 243 * 16 = 68016.
Steps: 0

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