Question

Решите уравнение x^2+7x-6=0

Answer 1

${x}^{2} + 7x - 6 = 0$

D = 7^2 - 4 • 1 • ( - 6 ) = 49 + 24 = 73

$x_{1} = \frac{ - 7 - \sqrt{73} }{2} \\ \\ x_{2} = \frac{ - 7 + \sqrt{73} }{2}$



ОТВЕТ: ( - 7 - \/73 ) / 2 ; ( - 7 + \/73 ) / 2.