|(x-9)(x+9)|+|x+9|=0 Решите уравнение

Решим уравнение и найдем его корни |(x - 9) * (x + 9)| + |x + 9| = 0. 

{ (x - 9) * (x + 9) + |x + 9| = 0; 

- (x - 9) * (x + 9) + |x + 9| = 0; 

{ (x - 9) * (x + 9) + x + 9 = 0;  

(x - 9) * (x + 9)  - (x + 9) = 0; 

- (x - 9) * (x + 9) + x + 9 = 0;  

- (x - 9) * (x + 9) - (x + 9) = 0;  

{ (x + 9) * (x - 9 + 1) = 0;  

(x + 9) * (x - 9 - 1) = 0;

(x + 9) * (- (x - 9) + 1) = 0; 

- (x - 9) * (x + 9 + 1) = 0;  

{ (x + 9) * (x - 8) = 0; 

(x + 9) * (x - 10) = 0; 

(x + 9) * (-x + 9 + 1) = 0; 

- (x - 9) * (x + 10) = 0; 

{ x = -9; 

x = 8; 

x = 10; 

10 - x = 0; 

x = 9; 

x = -10; 

{ x = -9; 

x = 9; 

x = 10; 

x = -10; 

x = 8.