Решите уровнение.1)х2-9=02)х2-(х-4)(х+4)=4х3)4(х+3)2-(2х-2)(2х+2)=164)-(3х-4)2+9х(х+2)=110

1) х - 9 = 0;

Разложим на множители.

x - 3 = 0;

(x - 3) * (x + 3) = 0;

x - 3 = 0;

x + 3 = 0;

x = 3;

x = -3.

2) х - (х - 4) * (х + 4) = 4 * х;

x - (x - 4) = 4 * x;

x - (x - 16) = 4 * x;

x - x + 16 = 4 * x;

4 * x = 16;

x = 4.

3) 4 * (х + 3) - (2 * х - 2) * (2 * х + 2) = 16;

4 * (x + 6 * x + 9) - (4 * x - 4) = 16;

4 * x + 24 * x + 36 - 4 * x + 4 = 16;

24 * x + 36 + 4 = 16;

24 * x + 40 = 16;

24 * x = 16 - 40;

24 * x = -24;

x = -24/24;

x = -1.

4) -(3 * х - 4) + 9 * х * (х + 2) = 110; 

-(9 * x - 24 * x + 16) + 9 * x + 18 * x = 110; 

24 * x - 16 + 18 * x = 110; 

42 * x = 110 + 16; 

x = 126/42; 

x = 3.