Question 9
Binomial TheoremFind the coefficent of x4 in the expansion of (1 − 2x)6.
- A.−320
- B.−240
- C.240
- D.320
Show the answer and explanation
Answer: C (240)
Explanation
⁶C₄(−2x)⁴ = 15 × 16x⁴ = 240x⁴.
Find the coefficent of x4 in the expansion of (1 − 2x)6.
Answer: C (240)
⁶C₄(−2x)⁴ = 15 × 16x⁴ = 240x⁴.