решите уравнение x(x-4)=(x+3)^2

x(x-4)=(x+3)^2 = 0x^2 - 4x = x^2 + 6x + 9x^2 - x^2 - 4x - 6x - 9 = 0-10x - 9 = 0 | : 110x + 9 = 010x = -9x = -9/10