Question

решите уравнение 3+ (2x+3)2=4(x-6)(6+x)

Answer 1

3 + (2x + 3)² = 4(x - 6)(6 + x)
3 + 4x² + 12x + 9 = 4(x² - 36)
4x² + 12x + 12 - 4x² + 144 = 0
12x + 156 = 0
12x = - 156
x = - 156 : 12 = - 13
Ответ: - 13