1) (x-5)² =(x-8)²; 2) (x+9)²=(x+6)²;

Решение уравнений:

1) (x - 5)² = (x - 8)² x² - 10x + 25 = x² - 16x + 64 -10x + 16x = 64 - 25 6x = 39 x = 39/6 x = 6.5 2) (x + 9)² = (x + 6)² x² + 18x + 81 = x² + 12x + 36 18x - 12x = 36 - 81 6x = -45 x = -45/6 x = -7.5

Ответ:

• 1) x = 6.5
• 2) x = -7.5