Question

Factorise the expression:
a²-ab-b²​

Answer 1

hopefully its helped u :)

Answer 2

Answer:

a2 - b2 - a - b = [(a - b)(a + b)] - (a + b) = (a + b)(a - b - 1). Therefore, factors of a2 - b2 - a - b are (a + b)(a - b - 1).