Решите уравнение (x-5)^2=(x+10)^2
X^2 - 10x + 25 = x^2 + 20x + 100 - 10x + 25 = 20x + 100 - 10x - 20x = 100 - 25 - 30x = 75 x = - 75/30 x = - 2,5