x₁ = (4 + √4) / (2 * 3)x₁ = (4 + 2) / 6x₁ = 6 / 6x₁ = 1
x₂ = (4 - √4) / (2 * 3)x₂ = (4 - 2) / 6x₂ = 2 / 6x₂ = 1/3
Ответ: x₁ = 1, x₂ = 1/3
x₁ = (-14 + √256) / (2 * 5)x₁ = (-14 + 16) / 10x₁ = 2 / 10x₁ = 1/5
x₂ = (-14 - √256) / (2 * 5)x₂ = (-14 - 16) / 10x₂ = -30 / 10x₂ = -3
Ответ: x₁ = 1/5, x₂ = -3
x₁ = (-18 + √576) / 14x₁ = (-18 + 24) / 14x₁ = 6 / 14x₁ = 3/7
x₂ = (-18 - √576) / 14x₂ = (-18 - 24) / 14x₂ = -42 / 14x₂ = -3
Ответ: x₁ = 3/7, x₂ = -3
x₁ = (16 + √400) / 24x₁ = (16 + 20) / 24x₁ = 36 / 24x₁ = 3/2
x₂ = (16 - √400) / 24x₂ = (16 - 20) / 24x₂ = -4 / 24x₂ = -1/6
Ответ: x₁ = 3/2, x₂ = -1/6
D = (-4)² - 4 3 1
D = 16 - 12
D = 4
x₁ = (4 + √4) / (2 * 3)
x₁ = (4 + 2) / 6
x₁ = 6 / 6
x₁ = 1
x₂ = (4 - √4) / (2 * 3)
x₂ = (4 - 2) / 6
x₂ = 2 / 6
x₂ = 1/3
Ответ: x₁ = 1, x₂ = 1/3
5x² + 14x - 3 = 0D = 14² - 4 5 (-3)
D = 196 + 60
D = 256
x₁ = (-14 + √256) / (2 * 5)
x₁ = (-14 + 16) / 10
x₁ = 2 / 10
x₁ = 1/5
x₂ = (-14 - √256) / (2 * 5)
x₂ = (-14 - 16) / 10
x₂ = -30 / 10
x₂ = -3
Ответ: x₁ = 1/5, x₂ = -3
7x² + 18x - 9 = 0D = 18² - 4 7 (-9)
D = 324 + 252
D = 576
x₁ = (-18 + √576) / 14
x₁ = (-18 + 24) / 14
x₁ = 6 / 14
x₁ = 3/7
x₂ = (-18 - √576) / 14
x₂ = (-18 - 24) / 14
x₂ = -42 / 14
x₂ = -3
Ответ: x₁ = 3/7, x₂ = -3
12x² - 16x - 3 = 0D = (-16)² - 4 12 (-3)
D = 256 + 144
D = 400
x₁ = (16 + √400) / 24
x₁ = (16 + 20) / 24
x₁ = 36 / 24
x₁ = 3/2
x₂ = (16 - √400) / 24
x₂ = (16 - 20) / 24
x₂ = -4 / 24
x₂ = -1/6
Ответ: x₁ = 3/2, x₂ = -1/6