Question

помогите решить(
-х^2-3х+1=0

Answer 1

$x {}^{2} + 3x - 1 = 0 \\ d = 9 + 4 = 13 \\ x1 = \frac{ - 3 + \sqrt{13} }{2} \\ x2 = \frac{ - 3 - \sqrt{13} }{2}$