Question

Решите уравнение:Прошу!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Даю 20 баллов
(х+4)^2-x^2=2x+1

Answer 1

(x^2 + 8x + 16) - x^2 = 2x + 1 
8x + 16 = 2x + 1 
8x - 2x = 1 - 16 
6x = - 15
x = - 15/6 = - 2,5