упростите выражение (а-1)^2-(а+1)(а-2)
(a² - 2a + 1) - (a² - 2a +a - 2) = a² - 2a + 1 - a² + 2a - a + 2 = 3 - a
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Verified answer
(a² - 2a + 1) - (a² - 2a +a - 2) = a² - 2a + 1 - a² + 2a - a + 2 = 3 - a
Verified answer
(a² - 2a + 1) - (a² - 2a +a - 2) = a² - 2a + 1 - a² + 2a - a + 2 = 3 - a