2х²-5х+2=0
D=b²-4ac=(-5)²-4*2*2=25-16=9
x1= (-b+√D)/2a = (5+3)/4 = 8/4 = 2
x2= (-b-√D)/2a = (5-3)/4 = 2/4 = 1/2 = 0,5
ответ: 2 и 0,5
2х²-5х+2=0
D=b²-4ac=(-5)²-4*2*2=25-16=9
x1= (-b+√D)/2a = (5+3)/4 = 8/4 = 2
x2= (-b-√D)/2a = (5-3)/4 = 2/4 = 1/2 = 0,5
ответ: 2 и 0,5