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OlTwist
@OlTwist
July 2022
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log3(x^2-4)=log3 3x
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drakoshka07
ОДЗ: x ∈ (2; + ∞).
x² - 4 = 3x;
x² - 3x - 4 = 0;
Д = 9 - 4 * 1 *(-4) = 25
x₁ = - 1 (не входить в ОДЗ), x₂ = 4.
В-дь: 4
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Answers & Comments
x² - 4 = 3x;
x² - 3x - 4 = 0;
Д = 9 - 4 * 1 *(-4) = 25
x₁ = - 1 (не входить в ОДЗ), x₂ = 4.
В-дь: 4