Question

Дискриминант 2х²- 4х - 17 = 0
х(1)=...х(2)=... тоже

Answer 1

2х²- 4х - 17 = 0
D = (-4) ²-4 * (-17) * 2 = 16 + 136 = 152
x(1) = 4+√152/4 = 4+√4*√38/4 = 2+√38/2
x(2) = 4-√152/4 = 4-√4*√38/4 = 2-√38/2