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безлемт15
@безлемт15
July 2022
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x+1/x+4=2/x+4 решите уравнение
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SaddenFury
(х+1)×(х+4)=2×(х+4)
х²+4х+х+4=2х+8
х²+4х+х-2х=8-4
х²+3х=4
-х²-3х-4=0
D= b²-4ас
D= -3²- 4×1×(-4)=25
х1,2= -b±√D/2a
x1=3+5/2×1=8/2=4
x2=3-5/2×1= -2/2= -1.
x1=4, x2= -1.
1 votes
Thanks 3
безлемт15
спс можеш еше пару зделать я отправлю задание
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Answers & Comments
х²+4х+х+4=2х+8
х²+4х+х-2х=8-4
х²+3х=4
-х²-3х-4=0
D= b²-4ас
D= -3²- 4×1×(-4)=25
х1,2= -b±√D/2a
x1=3+5/2×1=8/2=4
x2=3-5/2×1= -2/2= -1.
x1=4, x2= -1.