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Julia0fox
@Julia0fox
July 2022
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Помогите решить уравнение с третей степенью
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LFP
Verified answer
2x^3
+ 5x^2
- 4x
- 10 = 0
2x(x^2 - 2) + 5(x^2 - 2) = 0
(x^2 - 2)(2x + 5) = 0
x^2 = 2 2x = -5
x1 = -V2
x2 = V2
x3 = -2.5
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Answers & Comments
Verified answer
2x^3 + 5x^2 - 4x - 10 = 02x(x^2 - 2) + 5(x^2 - 2) = 0
(x^2 - 2)(2x + 5) = 0
x^2 = 2 2x = -5
x1 = -V2
x2 = V2
x3 = -2.5