`2, 3^x = 3^4`
`=> x = 4`
`3, 7^x= 7^7`
`=> x = 7
`4, (-3)^x = (-3)^5`
`=> x=5`
`5, (-5)^x = (-5)^9`
`=> x=9`
`6, (-4)^x = (-4)^6`
`=> x = 6`
`7, 2^x= 4`
`=> 2^x = 2^2`
`=> x=2`
`8, 2^x= 8`
`=> 2^x= 2^3`
`=> x=3`
`9, 2^x= 16`
`=> 2^x= 2^4`
`=> x=4`
`10, 2^x= 64`
`=> 2^x = 2^6`
`=> x=6`
2: \(3^x=3^4\)
=>x=4
3: \(7^x=7^7\)
=>x=7
4: \(\left(-3\right)^x=\left(-3\right)^5\)
=>x=5
5: \(\left(-5\right)^x=\left(-5\right)^9\)
=>x=9
6: \(\left(-4\right)^x=\left(-4\right)^6\)
=>\(x=6\)
7: \(2^x=4\)
=>\(2^x=2^2\)
=>x=2
8: \(2^x=8\)
=>\(2^x=2^3\)
=>x=3
9: \(2^x=16\)
=>\(2^x=2^4\)
=>x=4
10: \(2^x=64\)
=>\(2^x=2^6\)
=>x=6
2, \(3^x=3^4\)
\(x=4\)
Vậy \(x=4\)
3, \(7^x=7^7\)
\(x=7\)
Vậy \(x=7\)
4, \(\left(-3\right)^x=\left(-3\right)^5\)
\(x=5\)
Vậy \(x=5\)
5, \(\left(-5\right)^x=\left(-5\right)^9\)
\(x=9\)
Vậy \(x=9\)
6, \(\left(-4\right)^x=\left(-4\right)^6\)
\(x=6\)
Vậy \(x=6\)
7, \(2^x=4\)
\(2^x=2^2\)
\(x=2\)
Vậy \(x=2\)
8, \(2^x=8\)
\(2^x=2^3\)
\(x=3\)
Vậy \(x=3\)
9, \(2^x=16\)
\(2^x=2^4\)
\(x=4\)
Vậy \(x=4\)
10, \(2^x=64\)
\(2^x=2^6\)
\(x=6\)
Vậy \(x=6\)
