Question

Resolva a Equaçao x²-5x+6=0

Answer 1

x²-5x+6=0 
Usando a  fórmula:
x=-b²+/-√b²-4ac ÷ 2a

Sendo a=1 b=-5 e c=6

Substituindo os valores:
x= 5+/-√ 5²- (4×1×6) ÷ (2×1)
x= 5+/-√25-24÷2
x=5+/-1 ÷2

x1= 5+1÷2   
x1= 3

x2= 5-1÷2
x2=2