Question

5^x+1=125

Answer 1

\(5^{x+1}=125\\ \Rightarrow5^{x+1}=5^3\\ \Rightarrow x+1=3\\ \Rightarrow x=2\)

Answer 2

\(5^{x+1}=125\)

\(\Leftrightarrow5^{x+1}=5^3\)

\(\Leftrightarrow x+1=3\)

\(\Leftrightarrow x=2\)

Answer 3

\(5^{x+1}=125\)

\(\Leftrightarrow5^x.5=125\)

\(\Rightarrow5^x=\frac{125}{5}\)

\(\Rightarrow5^x=25\)

\(\Rightarrow5^x=5^2\)

\(\Rightarrow x=2\)

Answer 4

\(5^{x+1}=125\)

\(\Rightarrow5^{x+1}=5^3\)

\(\Rightarrow x+1=3\)

\(\Rightarrow x=3-1=2\)

Vậy :  \(x=2\)

Answer 5

5^x+1=125

5^x+1=5³

x+1=3

x=3-1

x=2

Answer 6

\(5^{x+1}=125\)

\(5^{x+1}=5^3\)

Suy ra \(x+1=3\)

\(x=2\)