Question

срооочнооо 2x²-x-6=0 розяжите ураврение

Answer 1

Ответ:

$2x^2 - x - 6 = 0\\D = 1 +4*2*6 = 1+48 = 49 = 7^2\\x_{1} = \frac{1+7}{4} = 2\\x_{2} = \frac{1-7}{4} = -\frac{6}{4} = -\frac{3}{2} = -1.5$