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annagrishchenko
@annagrishchenko
July 2022
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Решите уравнение 3х²-14х-49=0
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kate00000
D=-14^2- (-4(3*49))=784
=28
Ответ: -2
;7
1 votes
Thanks 1
abdula999111555
3х^2-14х-49=0
д=(-14)^2-4*3*(-49)=196+588=784/28
х1=14-28/6=-14/6=-2,3
х2=14+28/6=42/6=7
ответ:х1=-2,3
х2=7
0 votes
Thanks 1
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Answers & Comments
=28
Ответ: -2;7
д=(-14)^2-4*3*(-49)=196+588=784/28
х1=14-28/6=-14/6=-2,3
х2=14+28/6=42/6=7
ответ:х1=-2,3
х2=7