Question

3x(x - y ) + 2y (x - y ) + 7(y - x )

factorise​

Answer 1

Answer:

(x-y) (3x+2y+7)

Step-by-step explanation:

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Answer 2

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$3 x (x - y) + 2y(x - y) \\ + 7(y - x) \\ \\ = {3x}^{2} - 3xy + 2xy - {2y}^{2} \\ + 7y - 7x \\ \\ = {3x}^{2} - xy - {2y}^{2} + 7y - 7x$

_______OR______

(X-¥) (3x + 2¥ +7)

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