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August 2022
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решите супер лёгкое уравнение
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ekaterinkamiss
X^2-14x+49-2x^2-11x-23=0
-x^2-25x+26=0
x^2+25x-26=0
D=
25^2
−
4·1
·
(
−26
)
=
625+104
=729=27
x1=-25+27/2*1=2/2=1
x2=-25-27/2*1=-52/2=-26
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akantev99
Ответ в прикреплённой фотографии
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Answers & Comments
-x^2-25x+26=0
x^2+25x-26=0
D=25^2−4·1·(−26)=625+104=729=27
x1=-25+27/2*1=2/2=1
x2=-25-27/2*1=-52/2=-26