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ZAVADSKIE
@ZAVADSKIE
July 2022
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Вычислите дискриминант уравнения -5t2+40t-60=0
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Demalena
A = -5
b = 40
c = -60
D = b^2 - 4ac
D = 40^2 - 4 * (-5) * (-60) = 1600 - 1200 = 400
0 votes
Thanks 1
krugly1981
- 5t² + 40t - 60 = 0
5t² - 40t + 60 = 0
D = b² - 4ac
D = ( - 40)² - 4 × 5 × 60 = 1600 - 1200 = 400 = 20²
1 votes
Thanks 2
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Answers & Comments
b = 40
c = -60
D = b^2 - 4ac
D = 40^2 - 4 * (-5) * (-60) = 1600 - 1200 = 400
5t² - 40t + 60 = 0
D = b² - 4ac
D = ( - 40)² - 4 × 5 × 60 = 1600 - 1200 = 400 = 20²