Question

решите квадратное уравнение
2x²-6x-11=0

Answer 1

$2x {}^{2} - 6x - 11 = 0$

D = ( -6 ) - 4 * 2 * ( - 11 ) = 36 + 88 = 124

$x1 = \frac{6 - \sqrt{124} }{4} \\ \\ x2 = \frac{6 + \sqrt{124} }{4} \\ \\ x1 = \frac{3 - \sqrt{31} }{2} \\ \\ x2 = \frac{3 + \sqrt{31} }{2}$

~•~•~•ZLOY_TIGROVSKIY~•~•~•