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x²-y² = 144
x = 36-y
x²-y² = 144
(36-y)²-y² = 144
x = 36-y
1296-72y+y²-y² = 144 /-1296
x = 36-y
-72y = -1152 /:(-72)
x = 36-y
y = 16
x = 36-16
y = 16
x = 20
Odp. Te liczby to 16 i 20