Решение уравнение: (7- x)^ = (x+7)^
(x - 7)^2 = (x + 7)^2 (x - 7)^2 - (x + 7)^2 = 0 (x - 7 - (x + 7)) (x - 7 + x + 7) = 0 - 14*(x + x) = 0 2x = 0 x = 0 Ответ: 0
(7-x)² = (x+7)² 49-14x+x² = x²+14x+49 -14x+x²-x²-14x = 49-49 -28x = 0 x = 0 Проверка : (7-0)² = (0+7)² 7² = 7² 49 = 49 Ответ : 0.