Question

resolva as equaçôes de 2° grau na forma completa:
a) x² - 5x + 6 = 0 0​

Answer 1

Resposta:

x1 = 3

x2 = 2

Explicação passo a passo:

x² – 5x + 6 = 0

Para ax² + bx + c = 0:  

Fórmula de Bhaskara:  

x = (–(–5) ± √((–5)² – 4 • 1 • 6)) / (2 • 1)

x = 5 ± √(25 – 4 • 6)) / 2

x = 5 ± √(25 – 24)) / 2

x = 5 ± √1 / 2

x = 5 ± 1 / 2

x1 = 5 + 1 / 2

x1 = 6 / 2

x1 = 3

x2 = 5 – 1 / 2

x2 = 4 / 2

x2 = 2