Question

(a-b)^3=? Plz solve it

Answer 1

Hope it will help you....

Answer 2

Hey Friend ☺

( a - b )^3

= ( a - b ) ( a - b )^2

= ( a - b ) ( a^2 - 2ab + b^2 )

= ( a^2 - 2ab + b^2 ) × a - b ( a^2 - 2ab + b^2 )

= a^3 - 2a^2b + ab^2 - a^2b + 2ab^2 + b^3

= a^3 - 3a^2b + 3ab^2 + b^3

So

( a - b )^3 = a^3 - 3a^2b + 3ab^2 - b^3

Hope it helps you ..!!

✌