Question

how much larger is 16a²-3b²+7ab than 12a²- 9ab
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Answer 1

Step-by-step explanation:

$16a {}^{2} - 3b {}^{2} + 7ab - 12a {}^{2} - 9ab \\ 4a {}^{2} - 3b { }^{2} - - 2ab$

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