Question

7) Determine as raízes da equação x2 -14x + 48 = 0 e calcule o valor

de x1 + x2​

Answer 1

∆ = b^2 - 4ac

∆ = 196 - 192

∆ = 4

x1 = (-b + √∆)2a

x1 = (14 + 2)/2

x1 = 8

x2 = (-b - ✓∆)/2a

x2 = (14 - 2)/2

x2 = 6

x1 + x2 = -b/a

14/1

14