решите систему уравнений 1) x^2-xy+y^2=7; x+y=5 2)x^2-y=14; 3x+y=4; 3)x^2+y^2=17; y-3x-1=0. Created by Aselisssa. matematika-ru

решите систему уравнений 1) x^2-xy+y^2=7; x+y=5 2)x^2-y=14; 3x+y=4; 3)x^2+y^2=17...

July 2022 1 4 Report

решите систему уравнений 1) x^2-xy+y^2=7; x+y=5 2)x^2-y=14; 3x+y=4; 3)x^2+y^2=17; y-3x-1=0

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sidelnikovarim Решим системы способом подстановки
1) x^2-x(5-x)+(5-x)^2-7=0 x^2-5x+x^2+25-10x+x^2-7=0 3x^2-15x+18=0
y=5-x y=5-x y=5-x

x^2-5x=6=0 x1=2 x2=3
y-5-x y1=3 y2=2 отв. (2;3) и (3;2)

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pomogite sdelat morfologicheskij razbor narechiya asya horosho govorila po francuzsk

perevedite pozhalujsta zhelatelno sami bez perevodchika kogda tvoe imya znachit m

pomogite reshitx21y0ax 1y1bx1y0cx 1y 1dx0y5

v dannom predlozhenii najdite sluzhebnye chasti rechi v kazhdom yazyke u kazhdogo nar

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