17х² + 16х - 33 = 0
D = b² - 4ac
D = 16² - 4 * 17 * (-33) = 256 - (-2244) = 256 + 2244 = 2500
x₁ = (-b + √D)/2a
x₁ = (-16 + √2500)/2 * 17 = 34/34 = 1
x₂ = (-b - √D)/2a
x₂ = (-16 - √2500)/2 * 17 = -66/34 = -1 целая 32/34.
ответ: x₁ = 1; x₂ = -1 целая 32/34
17х² + 16х - 33 = 0
D = b² - 4ac
D = 16² - 4 * 17 * (-33) = 256 - (-2244) = 256 + 2244 = 2500
x₁ = (-b + √D)/2a
x₁ = (-16 + √2500)/2 * 17 = 34/34 = 1
x₂ = (-b - √D)/2a
x₂ = (-16 - √2500)/2 * 17 = -66/34 = -1 целая 32/34.
ответ: x₁ = 1; x₂ = -1 целая 32/34