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meirzhun15
@meirzhun15
July 2022
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15 баллов за легкотню)
1) x^2-x-6=0
2) x^2-6x-16=0
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xxxeol
Verified answer
1) х² - х - 6 = 0.
Находим дискриминант
D = b² - 4*a*c = 25
√D = 5. Корни по формуле
x₁,₂ = (-b +/- √D)/2a
и корни
х₁ = - 3 и х₂ = 2 - ОТВЕТ
2) x² - 6*x - 16 = 0
D = 100, √D = 10
х₁ = - 2 и х₂ = 8 - ОТВЕТ
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Answers & Comments
Verified answer
1) х² - х - 6 = 0.Находим дискриминант
D = b² - 4*a*c = 25
√D = 5. Корни по формуле
x₁,₂ = (-b +/- √D)/2a
и корни
х₁ = - 3 и х₂ = 2 - ОТВЕТ
2) x² - 6*x - 16 = 0
D = 100, √D = 10
х₁ = - 2 и х₂ = 8 - ОТВЕТ