Question

x2-35=2x
Помогите через Дискриминат
Срочно! ​

Answer 1

${x}^{2} - 35 = 2x \\ {x}^{2} - 2x - 35 = 0 \\ D = {( - 2)}^{2} - 4 \times ( - 35) = 4 + 140 = 144 = {12}^{2} \\ x_{1} = \frac{2 + 12}{2} = 7 \\ x_{2} = \frac{ 2 - 12}{2} = - 5$

Ответ: -5, 7