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marataglyamov
@marataglyamov
July 2022
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AlienKay
2log₂(-x)=log₂2+log₂(x+4)
(-x)^2=2(x+4)
x^2=2x+8
x^2-2x-8=0
D=4+4*8=36
x1= (2+6)/2=4
x2= (2-6)/2= -2
Ответ: (4;-2)
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Answers & Comments
(-x)^2=2(x+4)
x^2=2x+8
x^2-2x-8=0
D=4+4*8=36
x1= (2+6)/2=4
x2= (2-6)/2= -2
Ответ: (4;-2)