Tìm x, y: 3^x-1+5.3^x-1=162
Tìm x,y:
1,5^2-x-3-3.5^2016=5^2018.2
2,3^x-1+5.3^x-1=162
3,(4x-15)^5=(4x-15)^3
4,2x+2^x+1+2^x+2+...+2x^2015=2^2019-8
5,5^x+5^x+1.5^x+2=100........0 :2^18
18 c/s 0
6,1/5.2x+1/3.2^x+1=1/5.2^7+1/3.2^8
7,(x-2019)x+11-(x-2019)^x+21=0