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Nuraika04
@Nuraika04
August 2022
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Решите пожалуйста
(10^5-х)^6-x=100
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Verified answer
[10^(5-x)]^(6-x)=100
10^(5-x)(6-x)=10^2
(5-x)(6-x)=2
30-5x-6x+x^2-2=0
x^2-11x+28=0
D=(-11)^2-4*1*28=9
x1=(11-3)/2=4
x2=(11+3)/2=7
Ответ: 4;7
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Answers & Comments
Verified answer
[10^(5-x)]^(6-x)=10010^(5-x)(6-x)=10^2
(5-x)(6-x)=2
30-5x-6x+x^2-2=0
x^2-11x+28=0
D=(-11)^2-4*1*28=9
x1=(11-3)/2=4
x2=(11+3)/2=7
Ответ: 4;7