Question

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Factorise:
12a²xy - 3b² xy


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Answer 1

12a² - 9ab - ( 16a²-3b²+7ab)

12a² - 9ab - 16a² + 3b² - 7ab

(12a²-16a²) +(-9ab -7ab) + 3b²

-4a² -16ab +3b²

12a² -9ab is -4a² -16ab +3b²

greater than 16a²-3b²+7ab

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