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

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asked May 11, 2018 229k views

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

Mathematics
high-school

Laurent Lyaudet asked

by Laurent Lyaudet

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1 Answer

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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

Javi Torre answered May 16, 2018

by Javi Torre

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–13.5a + 34.12b + 65.5a – 32.5b – 35.8a A. 32.5a + 20.47b B. 16.2a + 1.62b C. –18.7a – 26b D. 1.62a + 16.2b

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