6x2 + x – 7 = 0
a = 6, b = 1, c = -7
D = b2-4ac = 1 -4 * 6 * (-7) = 1 + 168 = 169
X = (–b ± √D)/2a = (-1 ± 13)/12
X1 = -14/12 = -7/6
X2 = 12/12 = 1
Ответ: x = 1
6x2 + x – 7 = 0
a = 6, b = 1, c = -7
D = b2-4ac = 1 -4 * 6 * (-7) = 1 + 168 = 169
X = (–b ± √D)/2a = (-1 ± 13)/12
X1 = -14/12 = -7/6
X2 = 12/12 = 1
Ответ: x = 1