Question 10
Binomial TheoremFind the coefficient of x4 in the binomial expansion of (1 − 2x)6.
- A.320
- B.240
- C.−240
- D.−320
Show the answer and explanation
Answer: B (240)
Explanation
The x⁴ term is ⁶C₄(−2x)⁴ = 15 × 16x⁴ = 240x⁴.
Find the coefficient of x4 in the binomial expansion of (1 − 2x)6.
Answer: B (240)
The x⁴ term is ⁶C₄(−2x)⁴ = 15 × 16x⁴ = 240x⁴.