Предмет: Геометрия, автор: Youyouyouyouyoutop

Даю 50 баллов оооооочень срочно пжпжпжпжпжжпжпжп

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Автор ответа: lizziss

Объяснение:

(4а - 2b)(3a + b²) - (6a - b²)(2a + 2b) = 12a² + 4ab² - 6ab - 2b³ - (12a² + 12ab - 2ab² - 2b³) = 12a² + 4ab² - 6ab - 2b³ - 12a² - 12ab + 2ab² + 2b³ = 6ab² - 18ab - 12a² = 6a(b² - 3b - 4a) = 6a(0,25 - 1,5 + 4/3) = -2 • 7/3 = -14/3 = -4 2/3

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