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LeraPie
@LeraPie
August 2022
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Решите систему уравнений:
7x+2y+11=0
21x+13=-2y^2
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eva12121290
7х+2у+11=0. /*(-3)
-21х-6у-33=0
21х+13+2у^2=0
_+____________
2у^2-6у-20=0 /2
у^2-3у-10=0
у1=5
7х+10+11=0
х1=-3
(-3;5)
у2=-2
7х-4+11=0
х2=-1
(-1;-2)
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Answers & Comments
-21х-6у-33=0
21х+13+2у^2=0
_+____________
2у^2-6у-20=0 /2
у^2-3у-10=0
у1=5
7х+10+11=0
х1=-3
(-3;5)
у2=-2
7х-4+11=0
х2=-1
(-1;-2)