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ilalbo
@ilalbo
July 2022
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Найди корни уравнения −5,3(x−17)(x+1,5)=0.
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Sp1keazyYT
- 5,3(x - 17)(x + 1,5) = 0
(x - 17)(x + 1,5) = 0
x² + 1,5x - 17x - 25,5 = 0
x² - 15,5x - 25,5 = 0
x² - 15,5x - 25,5 = 0
D = (-15,5)² - 4 * 1 * (-25,5) = 240,25 + 102 = 342,25 = 18,5²
Ответ: - 1,5 ; 17
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Answers & Comments
(x - 17)(x + 1,5) = 0
x² + 1,5x - 17x - 25,5 = 0
x² - 15,5x - 25,5 = 0
x² - 15,5x - 25,5 = 0
D = (-15,5)² - 4 * 1 * (-25,5) = 240,25 + 102 = 342,25 = 18,5²
Ответ: - 1,5 ; 17
Verified answer