Question

segundo grau 5x²+6x+1=0​

Answer 1

5x² + 6x + 1 = 0

∆ = 6² - 4.5.1

∆ = 36 - 20

∆ = 16

$x = \frac{ - 6 + - \sqrt{16} }{2 \times 5}$

$x = \frac{ - 6 + - 4}{10}$

${x}^{1} = \frac{ - 6 - 4}{ 10 } \\ {x}^{2} = \frac{ - 6 + 4}{10}$

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