Question

Determine a raiz de x²+5x+6=0​

Answer 1

Resposta:

x1 = -2

x2 = -3

Explicação passo a passo:

a = 1, b = 5, c = 6

delta = b^2 - 4ac

delta = (5)^2 - 4 * 1 * 6

delta = 25 - 24

delta = 1

$\sqrt{1} = 1$

x1 = (-b + $\sqrt{delta}$) / 2 * a

x1 = (-5 + 1) / 2

x1 = -4 / 2

x1 = -2

x2 = (-b - $\sqrt{delta}$) / 2 * a

x2 = (-5 - 1) / 2

x2 = -6 / 2

x2 = -3