Question

a²-b² - a-b factorise​

Answer 1

Step-by-step explanation:

We know the identity

${a}^{2} - {b}^{2} = (a - b)(a + b)$

using the above identity, the given expression can be factorised as follows :

$( (a + b) (a - b) ) - (a + b) = (a + b)(a - b - 1)$

Therefore, the factors of

${a}^{2} - {b}^{2} - a - b$

are

$(a + b)(a - b - 1)$