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marinaKurkina
@marinaKurkina
July 2022
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Решите уравнение (2х+1)^2-(2х+3)(2х-3)=0
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SvetlanaWhite
(2x+1)^2-(2x+3)(2x-3)=0
4x^2+4x+1-(4x^2-6x+6x-9)=0
4x^2+4x+1-4x^2+9=0
4x+10=0
4x=-10
x=-10/4
x=-2.5
1 votes
Thanks 2
233334
(2x+1)²-(2x+3)*(2x-3)=0
4x²+4x+1-4x²+9=0
4x=-1-9
4x=-10|:4
x=-2,5
Ответ:-2,5.
2 votes
Thanks 1
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Answers & Comments
4x^2+4x+1-(4x^2-6x+6x-9)=0
4x^2+4x+1-4x^2+9=0
4x+10=0
4x=-10
x=-10/4
x=-2.5
4x²+4x+1-4x²+9=0
4x=-1-9
4x=-10|:4
x=-2,5
Ответ:-2,5.