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UrsaSaturnov
@UrsaSaturnov
July 2022
2
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Помогите с алгеброй, пожалуйста. Четвертый номер с объяснением.
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sedinalana
x² - 2x + 1 = 0 x ≠ 2 x ≠ - 2
(x - 1)² = 0
x = 1
0 votes
Thanks 1
Universalka
Verified answer
1/(x²-4)-2/(x+2)=-1
1/(x-2)(x+2)-2/(x+2)=-1
x≠2,x≠-2
1-2x+4=-x²+4
5-2x+x²-4=0
x²-2x+1=0
(x-1)²=0
x-1=0
x=1
Ответ при х=1
1 votes
Thanks 1
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Answers & Comments
x² - 2x + 1 = 0 x ≠ 2 x ≠ - 2
(x - 1)² = 0
x = 1
Verified answer
1/(x²-4)-2/(x+2)=-11/(x-2)(x+2)-2/(x+2)=-1
x≠2,x≠-2
1-2x+4=-x²+4
5-2x+x²-4=0
x²-2x+1=0
(x-1)²=0
x-1=0
x=1
Ответ при х=1