Question

ОБЪЯСНИТЕ!!!!Прошуууу

Answer 1

$|2x + 1| = | x - 4| \ {(2x + 1)}^{2} = {(x - 4)}^{2} \ {(2x + 1)}^{2} - {( x - 4)}^{2} = 0 \ (2x + 1 + x - 4)(2x + 1 - x + 4) = 0 \ (3x - 3)(x + 5) = 0$
3x - 3 = 0, 3x = 3, x = 1
x + 5 = 0, x = -5

-5 + 1 = -4

Ответ: А)