Question

factorise:-
x - y - x² + y²​

Answer 1

Step-by-step explanation:

given : (x-y)- (x²-y²) = (x-y)-((x+y)(x-y))

= (x-y)(1-(x+y))

=(x-y)(1-x-y)

Answer 2

$= x - y - {x}^{2} + {y}^{2}$

$= xy(1 - 1 - x + y)$

$= - x + y$