Question

Plss factorise: (a+b)³-(a-b)³
Answer is 2b(3a²+ b²).

Answer 1

Hey mate:
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Here is yr answer _______________________________

=> (a+b)^3-(a-b) ^3

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

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

=> 2b^3+6a^2b

=>2b(b^2+3a^2) or 2b(3a^2+b^2)✔✔

Hope it hlpzzzz........