Question

factorise: -(y-x) a+(x-y)​

Answer 1

Answer:

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Step-by-step explanation:

We need to factorise x

2

−xy+y−x as

=x(x−y)+1(y−x)

=x(x−y)−(x−y)

=(x−y)(x−1)

Hence, option C is correct.

Answer 2

Answer:

(a+1)(x-y)

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