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1202111106
@1202111106
July 2022
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пж решите уравнение даю 28 баллов! 3-2х-х^2=х-(х-1)(х+5)
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vitokle
3-2х-х^2=х-х^2+х+5-5х
-2х+3х= -3+5
х=2
Ответ: 2
2 votes
Thanks 1
nikulinaao12
3 - 2х - х^2= x - x + 1
3 - 2x - x^2=1
-x^2 - 2x + 2=0 /:(-1)
x^ + 2x- 2=0
D= 4 + 8= 12
x1= -2+корень из 12/ 2
x2= -2 - корень из 12/2
1 votes
Thanks 1
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Answers & Comments
-2х+3х= -3+5
х=2
Ответ: 2
3 - 2x - x^2=1
-x^2 - 2x + 2=0 /:(-1)
x^ + 2x- 2=0
D= 4 + 8= 12
x1= -2+корень из 12/ 2
x2= -2 - корень из 12/2