Ответ:
1. D = b² - 4ас
D = 4² - 4 х (-96) = 16 + 384 = 400
Х1 = 4+20/2
Х1 = 12
Х2 = 4 - 20/2
Х2 = -8
Ответ: -8; 12.
2. D = b^2 - 4ac = 9 - 4*1*(-28) = 121 = 11^2x₁ = ( - 3 + 11)/2 = 8/2 = 4;x₂ = ( - 3 - 11)/2 = - 14/2 = - 7; Ответ- 7; 4.
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Verified answer
Ответ:
1. D = b² - 4ас
D = 4² - 4 х (-96) = 16 + 384 = 400
Х1 = 4+20/2
Х1 = 12
Х2 = 4 - 20/2
Х2 = -8
Ответ: -8; 12.
2. D = b^2 - 4ac = 9 - 4*1*(-28) = 121 = 11^2x₁ = ( - 3 + 11)/2 = 8/2 = 4;x₂ = ( - 3 - 11)/2 = - 14/2 = - 7; Ответ- 7; 4.