Question

решите квадратное уравнение х2 +14х + 24 = 0

Answer 1

х2 +14х + 24 = 0

D = (14)^2 -4 * 1* 24 = 196- 96 = 100, d = 10

x1 = -14+10/2= -2

x2 = -14-10/ 2= -12

Ответ: -2, -12

Answer 2

х2 +14х + 24 = 0

D = b^2 - 4ac = 14^2 - 4*1*24 = 196 - 96 = 100

VD = V100 = 10

 

x1 = (-14 + 10)/2 = -4/2 = -2

x2 = (-14 - 10)/2 = -24/2 = - 12

 

ответ: x = -2  i  x = - 12