tìm x,biết
1/ 5\(^{x+4}\)- 3.6\(^{x+3}\)= 2.5\(^{11}\)
2/ 2.3\(^{x+2}\)+4.3\(^{x+11}\)=10.3\(^6\)
3 / \(\frac{1}{5}\).2\(^x\)+\(\frac{1}{3}\).2\(^{x+1}\)=\(\frac{1}{5}\).2\(^7\)+\(\frac{1}{3}\).2\(^8\)
4/ (\(\frac{1}{2}\)-\(\frac{1}{3}\)).6\(^x\)+6\(^{x+2}\)=6\(^{10}\)+6\(^7\)
5/ (\(\frac{1}{3}\)+\(\frac{1}{6}\)).2\(^x\)+2\(^{x+1}\)=2\(^{12}\)+2\(^{10}\)
Lalalalalalalalalalalalalalalala