2^x+2^y=2^1+2^3
x+y=4
x=1 y=3
x=3 y=3
7*7^x+3*7^x=2^5*2^x+3*2^x
10*7^x=35*2^x
(7/2) ^x=3,5
3,5^x=3,5^1
x=1
А(1)=2
а(n+1)= 3 a(n) +1
a(2)= 7
a(3)= 10
a(4)= 13
a(5)= 16
1
2x²=3x+2
2x²-3x-2=0
D=9+16=25
x1=(3-5)/4=-0,5
x2=(3+5)/4=2
2
8*1/2*2^2x-28*1/8*2^2x=1/2
32*2^2x-28*2^2x=4
4*2^2x=4
2^2x=1
2x=0
x=0