Question

Решите уравнение
(x+5)^2=4

Answer 1

(x + 5)^2 - 4 = 0 
(x + 5)^2 - 2^2 = 0 
(x + 5 - 2) * ( x + 5 + 2) = 0 
( x + 3) * ( x + 7) = 0 
x = - 3
x = - 7