2. Решение уравнений:
- а) \( 6 - (6 - 5x) = 2(x + 1) \):
\( 6 - 6 + 5x = 2x + 2 \)
\( 5x = 2x + 2 \)
\( 5x - 2x = 2 \)
\( 3x = 2 \)
\( x = \frac{2}{3} \) - б) \( (x + 4)^2 = x(x+4) \):
\( x^2 + 8x + 16 = x^2 + 4x \)
\( 8x + 16 = 4x \)
\( 8x - 4x = -16 \)
\( 4x = -16 \)
\( x = -4 \)
Ответ: а) \( x = \frac{2}{3} \); б) \( x = -4 \).