(7-x)^2 = (-18-x)^249 - 14x + x^2 = 324 + 36x + x^2-14x = 275 + 36x50x = -275x = -5.5
Проверка:(7 - (-5.5))^2 = (12.5)^2 = 156.25(-18 - (-5.5))^2 = (-12.5)^2 = 156.25
Ответ: x = -5.5
(7-x)^2 = (-18-x)^2
49 - 14x + x^2 = 324 + 36x + x^2
-14x = 275 + 36x
50x = -275
x = -5.5
Проверка:
(7 - (-5.5))^2 = (12.5)^2 = 156.25
(-18 - (-5.5))^2 = (-12.5)^2 = 156.25
Ответ: x = -5.5