(X-5)^2=(x-7)^2 помогите пожалуйста
A^2 - b^2 = (a - b)(a + b) (x - 5)^2 - (x - 7)^2 = 0 (x - 5 - x + 7)(x - 5 + x - 7) = 0 2* (2x - 12) = 0 2x - 12 = 0 x - 6 = 0 x = 6