3^(3+x-2)-3^x=169
3*3^x-3^x=169
2*3^x=169
3^x=169/2
x=log3 169/2
7^(2x)=7^(14x)
2x=14x
x=0
3*(4/9)^x+(6/9)^x-2=0
3*(2/3)^(2x)+(2/3)^x-2=0
(2/3)^x=t
3t^2+t-2=0
D=25
t1,2=(-1+-5)/6=-1, 2/3
(2/3)^x=-1
x=пустое множество
(2/3)^x=2/3
x=1
3*3^x+(1/3)*3^x=10
3^x(3+1/3)=10
3^x=10/10/3=3
3^(3+x-2)-3^x=169
3*3^x-3^x=169
2*3^x=169
3^x=169/2
x=log3 169/2
7^(2x)=7^(14x)
2x=14x
x=0
3*(4/9)^x+(6/9)^x-2=0
3*(2/3)^(2x)+(2/3)^x-2=0
(2/3)^x=t
3t^2+t-2=0
D=25
t1,2=(-1+-5)/6=-1, 2/3
(2/3)^x=-1
x=пустое множество
(2/3)^x=2/3
x=1
3*3^x+(1/3)*3^x=10
3^x(3+1/3)=10
3^x=10/10/3=3
x=1