Question

factorise a-b-asquare+bsquare​

Answer 1

Answer:

a2 -b2- a-b

(a+b)(a-b) -1(a+b) {using the identity of a2 - b2}

(a+b)(a-b-1).{ talking (a+b) common }

Hence the answer of your questions is (a+b) (a-b-1)