(x+y)^2 = 169
(x-y)^2= 9
|x+y|=13
|x-y|=3
получается несколько сичтем уравнений
1.
x+y = 13
x-y = 3
2x=16
x=8 y=5
2.
x+y = -13
x-y = -3
2x = -16
x=-8
y=-5
3.
x+y=13
x-y=-3
2x=10
x=5
y=8
4.
x+y=-13
x-y=3
2x=-10
x=-5
y=-8
ответ (5 8) (8 5) (- 5 -8) (-8 -5)
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Verified answer
(x+y)^2 = 169
(x-y)^2= 9
|x+y|=13
|x-y|=3
получается несколько сичтем уравнений
1.
x+y = 13
x-y = 3
2x=16
x=8 y=5
2.
x+y = -13
x-y = -3
2x = -16
x=-8
y=-5
3.
x+y=13
x-y=-3
2x=10
x=5
y=8
4.
x+y=-13
x-y=3
2x=-10
x=-5
y=-8
ответ (5 8) (8 5) (- 5 -8) (-8 -5)