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What is (8a+2b-(2a-5b) ?
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4 votes
What is (8a+2b-(2a-5b) ?

User Laurent Lyaudet
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4 votes
8a+2b * -2a + 5b (since there's an invisible -1, at least the 1 is) so the product of that is -16a^2 + 10b^2
User Javi Torre
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