Question 25
Binomial TheoremFind the coefficient of x3y2 in the binomial expansion of (x − 2y)5.
- A.−80
- B.−10
- C.40
- D.80
Show the answer and explanation
Answer: C (40)
Explanation
The term is ⁵C₂x³(−2y)² = 10 × 4x³y² = 40x³y².
Find the coefficient of x3y2 in the binomial expansion of (x − 2y)5.
Answer: C (40)
The term is ⁵C₂x³(−2y)² = 10 × 4x³y² = 40x³y².