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aidanashanaxaeva
@aidanashanaxaeva
March 2022
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Помогите решить система уравнений.
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sedinalana
X=-3y-1
(-3y-1)²+2y(-3y-1)+y-3=0
9y²+6y+1-6y²-2y+y-3=0
3y²+5y-2=0
D=25+24=49
y1=(-5-7)/6=-2⇒x1=-3*(-2)-1=5
y2=(-5+7)/6=1/3⇒x2=-3*1/3-1=-2
(5;-2);(-2;1/3)
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Answers & Comments
(-3y-1)²+2y(-3y-1)+y-3=0
9y²+6y+1-6y²-2y+y-3=0
3y²+5y-2=0
D=25+24=49
y1=(-5-7)/6=-2⇒x1=-3*(-2)-1=5
y2=(-5+7)/6=1/3⇒x2=-3*1/3-1=-2
(5;-2);(-2;1/3)