Question

$ax - by + bx - ay =$
​

Answer 1

= ax - by + bx - ay

= x(a + b) - y(a + b)

= (a + b)(x - y)

Answer 2

Question:

ax-by+bx-ay

Answer:

ax-by+bx-ay

= ax-ay-by+bx

= a(x-y)-b(-y+x)

= (x-y)(a+b)

Final answer: (x-y)(a+b)