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zvezdateka
@zvezdateka
August 2022
2
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10 и вторую часть пожалуйста
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Annakuzne1906
Не знаю в интернете посмотри
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Juliaa21
12.
a³-5a²+5-a=0
(a³-5a²)+(5-a)=0
a²(a-5)-1(a-5)=0
(a²-1)(a-5)=0
a²-1=0 или a-5=0
a²=1 a=5
a=+-1
Ответ:-1;1;5
10.
(5x+1)(5x-1)-(5x+1)^2=0
25x²-1-(25x²+10x+1)=0
25x²-1-25x²-10x-1=0
-10x=1+1
-10x=2
x=2/(-10)
x=-0.2
Ответ: -0,2
1 votes
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Answers & Comments
a³-5a²+5-a=0
(a³-5a²)+(5-a)=0
a²(a-5)-1(a-5)=0
(a²-1)(a-5)=0
a²-1=0 или a-5=0
a²=1 a=5
a=+-1
Ответ:-1;1;5
10.
(5x+1)(5x-1)-(5x+1)^2=0
25x²-1-(25x²+10x+1)=0
25x²-1-25x²-10x-1=0
-10x=1+1
-10x=2
x=2/(-10)
x=-0.2
Ответ: -0,2