Question

factorise a^3 - b^3 + 4 (a - b)
)
the answer must be (a - b)(a^2 + ab + b^2 + 4)​

Answer 1

(a-b)(a²+ab+b²+4)

1st find the ∛a³ and ∛b³

Then write that in the 1st bracket.

Now according to the identity u need to find the ² of a and b.

Now according to the identity u gotta add 4 into our 2nd bracket.  

HOPE THIS MAKES UR DAY BETTER!!

KEEP SMILING, WORLD NEEDS IT :D!!