Math, asked by Dibyadas, 1 year ago

9(a-b)^2-25 (b-c)^2=?

Answers

Answered by Hacker20
3
9(a - b)² - 25 ( b - c )²

= 9 ( a² + b² -2ab ) - 25 ( b² + c ² - 2bc )

= 9a² + 9b² - 18ab - 25 b² + 25c² - 50bc

= 9a² + 16b² - 18ab - 25b² + 25c² - 50bc
Similar questions