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mirazhanas
@mirazhanas
August 2022
2
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ПОМОГИТЕ РЕШИТЬ СИСТЕМУ УРАВНЕНИЯ!!!!
х2-3у=-3
х2+3н=21
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koingrel
Verified answer
Х^2 - 3у = -3
+
х^2 + 3у = 21
_____
2х^2 = 18
х^2 = 9
х1 = 3; х2 = -3.
х1 = 3
х2 = -3
9 - 3у = -3
х1 = 3
х2 = -3
у = 4
Ответ: (3;4);(-3;4)
2 votes
Thanks 1
Toffe1337
Домножим первое уравнение на -1:
-х2+3у=3
х2+3у=21
---------------
6у=24
у=4
х2-12=-3
х2=9
х=3
Ответ:(3;4)
1 votes
Thanks 1
Toffe1337
+(-3;4), число из-под корня может быть и положительным и отрицательным
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Answers & Comments
Verified answer
Х^2 - 3у = -3+
х^2 + 3у = 21
_____
2х^2 = 18
х^2 = 9
х1 = 3; х2 = -3.
х1 = 3
х2 = -3
9 - 3у = -3
х1 = 3
х2 = -3
у = 4
Ответ: (3;4);(-3;4)
-х2+3у=3
х2+3у=21
---------------
6у=24
у=4
х2-12=-3
х2=9
х=3
Ответ:(3;4)