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к11а22т11я22
@к11а22т11я22
August 2022
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СРОЧНО!!! Найдите значение выражения ( a^2+100b^2-20ab):(b^2),если a/b+2010
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Dимасuk
Verified answer
(a² + 100b² - 20ab)/b² = (a² - 2•10ab + 10²b²)/b² = (a - 10b)²/b² = ((a - 10b)/b)² = ((a/b - 10b/b)² = (a/b - 10)²
При а/b = 2010:
(2010 - 10)² = 2000² = 4000000.
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Verified answer
(a² + 100b² - 20ab)/b² = (a² - 2•10ab + 10²b²)/b² = (a - 10b)²/b² = ((a - 10b)/b)² = ((a/b - 10b/b)² = (a/b - 10)²При а/b = 2010:
(2010 - 10)² = 2000² = 4000000.