Question

1-2х+4х
1-2х
$1 - 2 \sqrt{x + 4x \\ 1 - 2 \sqrt{x} }$
​

Answer 1

Пошаговое объяснение:

$1 - 2x + 4x = 1 + 2x \\ 1 + 2x = 1 - 2x \\ 2x = - 2x \\ 2x + 2x = 0 \\ 4x = 0 \\ x = 0$