в) 8x² – (x + 4)² = -8(x – 2);

Решим уравнение:

8x² – (x + 4)² = -8(x – 2)

8x² – (x² + 8x + 16) = -8x + 16

8x² – x² - 8x - 16 = -8x + 16

7x² - 8x - 16 = -8x + 16

7x² - 8x + 8x - 16 - 16 = 0

7x² - 32 = 0

7x² = 32

x² = 32/7

x = ±√(32/7) = ±√(32/7 * 7/7) = ±√(224/49) = ±(√(224))/7

Ответ: x = ±(√(224))/7