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Simplify: 1 3 (6ab - 9b) 2 3 (9ab 12b)

1 Answer

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1,3(6ab−9b)×2,3×9×12ab×b
3(6ab−9b)×2 to 6(6ab−9b)
1,6(6ab−9b),3×9×12ab×b
3×9×12ab×b to 324ab^2
1,6(6ab−9b),324ab^2
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