Question

Factorise : x (x − a ) − y ( y − a ) ​

Answer 1

Answer:

Step-by-step explanation:

Correct option is

A

(x−y)(x+y−a)

x(x−a)−y(y−a)

=x  

2

−ax−y  

2

+ay

=x  

2

−y  

2

−ax+ay

=(x+y)(x−y)−a(x−y)

=(x−y)(x+y−a)