Question

Resolva a equaçao de segundo grau X2 - 5x +6 =0

Answer 1

Δ = 25 - 24
Δ = 1

x = 5 +-√1/2
x = 5 +-1/2

x' = 5+1/2
x' = 3

x'' = 5-1/2
x'' =2                        ok

Answer 2

x²-5x+6 = 0
∆ = b² - 4ac
∆ = (-5)² -  4.1.6
∆ = 25-24 = 1
√∆ = 1
x=-b±√∆/2a
x= - (-5) ± 1 / 2
x' = 5+1/2=3
x'' = 5-1/2 = 2 
S = { 2 , 3}