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Yura13
@Yura13
July 2022
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5(x-y)=4y
[tex] x^{2} [/tex]+4[tex] y^{2} [/tex]=181
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dasdasfa
5x-5y=4y; 5x=9y; x=9y/5
(9y/5)^2+4y^2=181; ( 81y^2)/25+4y^2=181; 81y^2+100y^2=181*25;181y^2=181*25
y^2=25;y=-5 или у=5
еслиу=-5, то х=-45/5; х=-9
если у=5, то х= 45/5; х=9
ответ.(-9;-5), (9;5)
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Answers & Comments
(9y/5)^2+4y^2=181; ( 81y^2)/25+4y^2=181; 81y^2+100y^2=181*25;181y^2=181*25
y^2=25;y=-5 или у=5
еслиу=-5, то х=-45/5; х=-9
если у=5, то х= 45/5; х=9
ответ.(-9;-5), (9;5)