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lenasmirnova18
@lenasmirnova18
July 2022
2
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Помогите решить уравнение
log81 3^2x-6=2
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Шаен
Verified answer
81^2=3^2x-6;
(3^4)^2=3^2x-6;
3^8=3^2x-6;
8=2x-6;
2x=14;
x=7;
7 votes
Thanks 27
natavoron
Verified answer
3^2x-6=81^2
3^2x-6=6561
2x-6=log(3)6561
2x=14
x=7
3 votes
Thanks 8
natavoron
а нет там на 4 этапе 2x=8 x=4
Шаен
log(3)6561=8;2х-6=8;2х=14;х=7
natavoron
ой значит сначала правильно было
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Answers & Comments
Verified answer
81^2=3^2x-6;(3^4)^2=3^2x-6;
3^8=3^2x-6;
8=2x-6;
2x=14;
x=7;
Verified answer
3^2x-6=81^23^2x-6=6561
2x-6=log(3)6561
2x=14
x=7