Question

resultado de x²- 5x+6=0 ?​

Answer 1

x² - 5x + 6 = 0

∆ = (-5)² - 4.1.6

∆ = 25 - 24

∆ = 1

$x = \frac{ - ( - 5) + - \sqrt{1} }{2 \times 1}$

$x = \frac{5 + - 1}{2}$

$x_{1} = \frac{5 - 1}{2} \\ x_{2} = \frac{5 + 1}{2}$

$x_{1} = 2 \\ x_{2} = 3$