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lilyfire
@lilyfire
July 2022
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Найдите корни уравнения (2х + 7)^2 =
(2х – 1)^2.
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БелкаРФ
Verified answer
Использую формулы квадрата разности и суммы, преобразуем уравнение
(2х + 7)^2 =(2х – 1)^2.
4х2+28х+49=4х2-4х+1
32х=-48
х=-1,5
Ответ: х=-1,5
11 votes
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Answers & Comments
Verified answer
Использую формулы квадрата разности и суммы, преобразуем уравнение(2х + 7)^2 =(2х – 1)^2.
4х2+28х+49=4х2-4х+1
32х=-48
х=-1,5
Ответ: х=-1,5