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rfrektxtr
@rfrektxtr
July 2022
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(2х - 9)^2 = (2х - 3)(2х + 3)
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urok7
(2x - 9)² = (2x - 3)(2x + 3)
4x² - 36x + 81 = 4x² - 6x + 6x - 9
- 36x = - 90
x = 90:36
x = 2,5
Ответ: {2,5}
2 votes
Thanks 2
Regent1828
Verified answer
4х^2 - 36х + 81=4х^2 - 9. 36х = 90. х=2,5
1 votes
Thanks 6
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Answers & Comments
4x² - 36x + 81 = 4x² - 6x + 6x - 9
- 36x = - 90
x = 90:36
x = 2,5
Ответ: {2,5}
Verified answer
4х^2 - 36х + 81=4х^2 - 9. 36х = 90. х=2,5