Question

on simplifying (a+b)^3+(a-b)^3+6a(a^2-b^2)​

Answer 1

Answer:

Step-by-step explanation:

Solution

1) Expand

α³+2α²b+αb²+bα²+2b²α+b³+α³−2α²b+αb²−bα²+2b²α−b³+6α³−6αb²

Gather like terms

(α³+α³+6α³)+(2α²b+α²b−2α²b−α²b)+(αb²+2αb²+αb²+2αb²−6αb²)+(b³−b³)  

Simplify

8α³