Question

resolva utilizando a fórmula geral x²-5+6=0​

Answer 1

Resposta:

x^2-5x+6=0

∆=(-5)^2-4*6

∆= 25-24

∆= 1

x'= 5+√1/2

x'= 5+1/2

x'= 6/2= 3

x"=5-1/2

x"=4/2

x"=2

S={2,3}