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9876543211daadg
@9876543211daadg
August 2022
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уравнение. а) 2в степени x+5 = 1/8; б) 3 в степени x+2 + 3 в степени x = 810
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Ritka1197
А)2^(x+5)=1/8
2^(x+5)=2^(-3)
x+5=-3
x=-8
3^(x+2)+3^x=810;
3^(x+2)+3^x=3^(4)*10;
3^(x)*(9+1)=3^(4)*10;
10 сокращаем получаем
3^(x)=3^4 x=4
1 votes
Thanks 1
Ritka1197
б)3^(x+2)+3^x=810
Ritka1197
3^(x+2)+3^x=810
Ritka1197
3^(x+2)+3^x=810; 3^(x+2)+3^x=3^4*10; 3^(x)*(9+1)=3^4*10; 10 сокращаем получаем 3^(x)=3^4 x=4
aya87
2ˣ⁺⁵=1/8
2ˣ⁺⁵=(1/2)³
2ˣ⁺⁵=2⁻³
х+5=⁻3
х=-8
ответ: -8
0 votes
Thanks 0
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Answers & Comments
2^(x+5)=2^(-3)
x+5=-3
x=-8
3^(x+2)+3^x=810;
3^(x+2)+3^x=3^(4)*10;
3^(x)*(9+1)=3^(4)*10;
10 сокращаем получаем
3^(x)=3^4 x=4
2ˣ⁺⁵=(1/2)³
2ˣ⁺⁵=2⁻³
х+5=⁻3
х=-8
ответ: -8