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Lena159753
@Lena159753
August 2022
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(х-1)в квадрате=2х в квадрате - 6х - 31
решите уравнение
ну оооооочень нужноооо!!!!!!!!!!!!
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Blood1
(х-1)^2=2х^2-6x-31
х^2-2x+1=2x^2-6x-31
0=x^2-4x-32
по теореме виета
х1+х2=4
х1х2=-32
х1=8 , х2=-4
2 votes
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Answers & Comments
х^2-2x+1=2x^2-6x-31
0=x^2-4x-32
по теореме виета
х1+х2=4
х1х2=-32
х1=8 , х2=-4