1,5 и -1 1/3
Объяснение:
x² - x/6 = 2 |×6
6x² - 6*x/6 = 2*6
6x² - x =12
6x² - x - 12 = 0
D=(-1)²-4*6*(-12) = 1 + 288 = 289 = 17²
x1 = (-(-1)+17) / (2*6) = (1+17) / 12 =
= 18/12 = 3/2 = 1,5
x2 = (-(-1)-17) / (2*6) = (1-17) / 12 =
= -16/12 = -4/3 = -1 1/3
1,5 и -1 1/3
Объяснение:
x² - x/6 = 2 |×6
6x² - 6*x/6 = 2*6
6x² - x =12
6x² - x - 12 = 0
D=(-1)²-4*6*(-12) = 1 + 288 = 289 = 17²
x1 = (-(-1)+17) / (2*6) = (1+17) / 12 =
= 18/12 = 3/2 = 1,5
x2 = (-(-1)-17) / (2*6) = (1-17) / 12 =
= -16/12 = -4/3 = -1 1/3