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sufix22221
@sufix22221
August 2021
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1- 2a-1/4a²+4a+1. - 2a/2a+1
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krugly1981
- 2a / ( 2a + 1)(2a + 1) - 2a / ( 2a + 1) =( - 2a - 4a² - 2a)/ (2a + 1)(2a + 1) =
= ( - 4a² - 4a) / (2a + 1)² = - 4a( a + 1) / ( 2a + 1)²
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Answers & Comments
= ( - 4a² - 4a) / (2a + 1)² = - 4a( a + 1) / ( 2a + 1)²