Question

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

Answer 1

Answer:

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

(y-x)(b-a)

Answer 2

Answer:

(ax-bx) +(by-ay)

Let's take x and y for common

X(a-b)+y(b-a)

X(a-b) - y(a-b)

(a-b) (x-y)