Question

Решите уравнение y=-x^2+2x-1

Answer 1

Ответ:

$y = - {x}^{2} + 2x - 1 \\ - {x}^{2} + 2x - 1 = 0 \\ ({x - 1)}^{2} = 0 \\ x - 1 = 0 \\ x = 1.$