\(5^{x+2}=625\)<=> \(5^{x+2}=5^4\)
=> x + 2 = 4
<=> x = 4 - 2
<=> x = 2
5x+2=625
5x+2=54
x+2=4
x=4-2
Suy ra x=2
K mk nha
5x+2=625
\(5^{x+2}=5^4\)
\(5^{x+2}=5^{2+2}\)
\(x=2\)
\(5^{x+2}=625\)
\(5^{x+2}=5^4\)
\(\Rightarrow x+2=4\)
\(\Rightarrow x=4-2\)
\(\Rightarrow x=2\)
5^x+2=625
5^x+2=5^4
x+2=4
x=4-2
x=2
k mk nha