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oxxxo
@oxxxo
August 2022
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Помогите((
Решите систему уравнений
x-y=2
x^2+y^2=25-2xy
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Answers & Comments
Crazy201414
Х=2+у
(2+y)^2+y^2=25-2(2+y)y
4+y^2+y^2=25-4y+2y^2
4+2y^2=25-4y+2y^2
4+4y=25
4y=21
y=5,25
x=2+5,25
х=7,25
Ответ(7,25;5,25)
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Answers & Comments
(2+y)^2+y^2=25-2(2+y)y
4+y^2+y^2=25-4y+2y^2
4+2y^2=25-4y+2y^2
4+4y=25
4y=21
y=5,25
x=2+5,25
х=7,25
Ответ(7,25;5,25)