(а^2-а+4)^2-8а(а^2-а+4)+15а^2. Created by syrymshajyk. matematika-ru

(а^2-а+4)^2-8а(а^2-а+4)+15а^2...

July 2022 1 6 Report

(а^2-а+4)^2-8а(а^2-а+4)+15а^2

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SupremeX (a² - a+ 4)² - 8a • (a² - a + 4) + 15a² = (a² - a + 4)² - 3a • (a² - a + 4) - 5a • (a² - a + 4) + 15a² = (а² - a + 4) • (a² - a + 4 - 3a) - 5a • (a² - a + 4 - 3a) = ((a² - a + 4) - 5a) • (a² - a + 4 - 3a) = (a² - a + 4 - 5a) • (a² - 4a + 4) = (a² - 6a + 4) • (a - 2)²

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