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Marina17191
@Marina17191
July 2022
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log4(x^2 -5x + 8)=1
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IrkaShevko
Verified answer
ОДЗ: x² - 5x + 8 > 0
D = 25 - 32 = -7 < 0
x∈R
x² - 5x + 8 = 4
x² - 5x + 4 = 0
D = 25 - 16 = 9
x1 = (5-3)/2 = 1
x2 = (5+3)/2 = 4
Ответ: 1; 4
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Answers & Comments
Verified answer
ОДЗ: x² - 5x + 8 > 0D = 25 - 32 = -7 < 0
x∈R
x² - 5x + 8 = 4
x² - 5x + 4 = 0
D = 25 - 16 = 9
x1 = (5-3)/2 = 1
x2 = (5+3)/2 = 4
Ответ: 1; 4