Ответ:
(-1;-3), (1; -1)
Объяснение:
x=y+2
y²-2y(y+2)=3
y²-2y²-4y-3=0
y²+4y+3=0
D= 16-12= 4
y1= (-4-2)/2= -3
y2= (-4+2)/2= -1
x1= -1
x2= 1
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Verified answer
Ответ:
(-1;-3), (1; -1)
Объяснение:
x=y+2
y²-2y(y+2)=3
x=y+2
y²-2y²-4y-3=0
x=y+2
y²+4y+3=0
D= 16-12= 4
y1= (-4-2)/2= -3
y2= (-4+2)/2= -1
x1= -1
x2= 1