Question

factorise it fast guys

Answer 1

HEY HERE IS YOUR ANSWER

$ab( {x }^{2} + {y}^{2} ) - xy( {a}^{2} + {b}^{2} ) \\ \\ ab {x}^{2} + ab {y}^{2} - xy {a}^{2} - xy {b}^{2} \\ \\ ab {x}^{2} - xy {a}^{2} + ab {y}^{2} - xy {b}^{2} \\ \\ ax(bx - ay) + by(ay - bx) \\ \\ ax(bx - ay) - by(bx - ay) \\ \\( bx - ay) \: (ax - by)$

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