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алена54671
@алена54671
August 2022
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решите уравнение плизз
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ShirokovP
Verified answer
ОДЗ
x ≠ - 2; x ≠ 2
2 (x + 2) - (3x + 1)(x - 2) = 2x + 3
2x + 4 - (3x^2 - 5x - 2) = 2x + 3
2x + 4 - 3x^2 + 5x + 2 = 2x + 3
- 3x^2 + 7x + 6 = 2x + 3
- 3x^2 + 5x + 3 = 0 /:(-1)
3x^2 - 5x - 3 = 0
D = 25 + 36 = 61
x1 = ( 5 + √61)/6
x2 = (5 - √61)/6
Ответ
(5 ± √61)/6
1 votes
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Answers & Comments
Verified answer
ОДЗx ≠ - 2; x ≠ 2
2 (x + 2) - (3x + 1)(x - 2) = 2x + 3
2x + 4 - (3x^2 - 5x - 2) = 2x + 3
2x + 4 - 3x^2 + 5x + 2 = 2x + 3
- 3x^2 + 7x + 6 = 2x + 3
- 3x^2 + 5x + 3 = 0 /:(-1)
3x^2 - 5x - 3 = 0
D = 25 + 36 = 61
x1 = ( 5 + √61)/6
x2 = (5 - √61)/6
Ответ
(5 ± √61)/6