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suxelena
@suxelena
July 2022
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Решите срочно !!!2х+2/х+3 + 7х-11/(х+3)(х-5)=1
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ВикаВикторовна
Verified answer
((2х+2)(х-5)+7х-11-1(х+3)(х-5))/((х+3)(х-5)) = 0
(2х²-10х+2х-10+7х-11-х²+5х-3х+15)/((х+3)(х-5) = 0
(х²+х-6)/(х+3)(х-5) = 0
ОДЗ: (х+3)(х-5)≠0; х≠ -3; 5
х²+х-6 = 0
D = 1+24=25
х₁ = (-1+5)/2 = 2
х₂ = (-1-5)/2 = -3 (не принадлежит ОДЗ)
Ответ: х=2
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Answers & Comments
Verified answer
((2х+2)(х-5)+7х-11-1(х+3)(х-5))/((х+3)(х-5)) = 0(2х²-10х+2х-10+7х-11-х²+5х-3х+15)/((х+3)(х-5) = 0
(х²+х-6)/(х+3)(х-5) = 0
ОДЗ: (х+3)(х-5)≠0; х≠ -3; 5
х²+х-6 = 0
D = 1+24=25
х₁ = (-1+5)/2 = 2
х₂ = (-1-5)/2 = -3 (не принадлежит ОДЗ)
Ответ: х=2