Mathematics
Factorise the following:
a3 - b3 - a + b
Factorisation
9 Likes
Answer
We know that,
a3 - b3 = (a - b)(a2 + ab + b2).
a3 - b3 - a + b = (a - b)(a2 + ab + b2) - 1(a - b)
= (a - b)(a2 + ab + b2 - 1).
Hence, a3 - b3 - a + b = (a - b)(a2 + ab + b2 - 1).
Answered By
6 Likes