Math, asked by tamannakumre399, 9 months ago

expand (x-5)^3, what is the coefficient of x^2 in its expansion

Answers

Answered by sourav7017

1

Answer:

coefficient=15

Step-by-step explanation:

(x + a)³ = x³ + 3ax² + 3a²x + a³

coefficient of x² = 3x

= 3×5 = 15

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