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HorribleCow
@HorribleCow
July 2022
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Решить уравнение
3^(2x+1)-10*3^x+3=0
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AnonimusPro
Verified answer
3^2x*3-10*3^x+3=0;
делаем замену:
y=3^x
3y^2-10y+3=0;
D=64;
y1=10+8/6=3;
y2=2/6=1/3
3^x=3;
x=1
3^x=1/3
3^x=3^-1
x=-1;
Ответ: x1=1; x2=-1
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Answers & Comments
Verified answer
3^2x*3-10*3^x+3=0;делаем замену:
y=3^x
3y^2-10y+3=0;
D=64;
y1=10+8/6=3;
y2=2/6=1/3
3^x=3;
x=1
3^x=1/3
3^x=3^-1
x=-1;
Ответ: x1=1; x2=-1