![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
5x + 5x +2 = 650
5x + 5x . 52 = 650
5x .( 1 +25 ) = 650
5x .26 = 650
5x = 650 / 26 =25
5x = 52
nên x=2
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5^{x+2}+5^x=650=>5^x.5^2+5^x=650=>5^x\left(5^2+1\right)=650=>5^x=650:26=25=5^2\)
=>x=2
tick nhe
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5^x+5^{x+2}=650\)
\(\Rightarrow5^x+5^x.5^2=650\)
\(\Rightarrow5^x+5^x.25=650\)
\(\Rightarrow5^x.\left(1+25\right)=650\)
\(\Rightarrow5^x.26=650\)
\(\Rightarrow5^x=650:26\)
\(\Rightarrow5^x=25\)
\(\Rightarrow x=2\)
Vậy \(x=2\)
Chúc bạn học tốt !!!
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5^x+5^{x+2}=650\)
\(5^x+5^x.5^2=650\)
\(5^x+5^x.25=650\)
\(5^x.26=650\)
\(5^x=\frac{650}{26}\)
\(5^x=25\)
\(5^x=5^2\)
\(\Rightarrow x=2\)
Vậy x=2
\(5^x+5^{x+2}=65\)
\(5^x+5^x.25=650\)
\(5^x.\left(25+1\right)=650\)
\(5^x.26=650\)
\(5^x=25\)
\(5^x=5^2\)
\(\Rightarrow X=2\)
`5^{x}+5^{x+2}=650`
`5^{x}(1+5^{2})=650`
`5^{x}.26=650`
`5^{x}=650:26=25`
`5^{x}=5^{2}`
`x=2`
\(5^x+5^{x+2}=650\)
\(5^x+5^x\times5^2=650\)
\(5^x+5^x\times25=650\)
\(5^x\times\left(25+1\right)=650\)
\(5^x\times26=650\)
\(5^x=650\div26\)
\(5^x=25\)
\(5^x=5^2\)
\(x=2\)