11^2 - x^2 = 16^2 -(x+9)^2
121 - x^2 = 256 - x^2 - 18x - 81
18x = 54
x = 3
x+9 = 3+9 = 12
ответ : 12 и 3
11^2 - x^2 = 16^2 -(x+9)^2
121 - x^2 = 256 - x^2 - 18x - 81
18x = 54
x = 3
x+9 = 3+9 = 12
ответ : 12 и 3