Question

решите уравнение 2х^2+5х-3=0

Answer 1

2х^2 + 5x - 3 = 0
D = 25 - 4 * (-3 * 2) = 25 + 24 = 49;  YD = 7
x1 = (-5 + 7) / 4 = 0,5
x2 = (- 5 - 7) / 4 = - 3
x1 = 0,5
x2 = - 3