Question

segundo grau 5x²+6x+1=0
resposta curta​

Answer 1

5x² + 6x + 1 = 0

$x = \frac{ - 6 + - \sqrt{ {6}^{2} - 4 \times 5 \times 1 } }{2 \times 5}$

$x = \frac{ - 6 + - \sqrt{36 - 20} }{10}$

$x = \frac{ - 6 + - \sqrt{16} }{10}$

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

$x_{1} = \frac{ - 6 - 4}{10} = - 1$

$x_{2} = \frac{ - 6 + 4}{10} = - \frac{1}{5}$