Question

resuelve y halla la mayor raiz : x^2 + 7x + 1 =0

Answer 1

Respuesta:

${x}^{2} + 7x + 1 = 0$

$x1 = \frac{ - b + \sqrt{ {b}^{2} - 4ac} }{2a}$

$x1 = \frac{ - 7 + \sqrt{ {7}^{2} - 4(1)(1) } }{2}$

$x1 = - \frac{7 + 3 \sqrt{5} }{2}$

$x2 = \frac{ - b - \sqrt{ {b}^{2} - 4ac } }{2a}$

$x2 = \frac{ - 7 - \sqrt{ {7}^{2} - 4(1)(1)} }{2}$

$x2 = - \frac{7 - 3 \sqrt{5} }{2}$

saludos