\(x^4=16\Rightarrow x^4=2^4\Rightarrow x=2\)
x4 = 16
do 16 = 8 x 2
8 = 4 x 2
4 = 2 x 2
=> 24 = 16
x = 16
\(\text{ x}^4=16\)
\(\Rightarrow\text{ x}^4=2^4\)
\(\Rightarrow\text{ x}=2\)
Hok tot
x4=16
ta có : 16 = 24
=> 24 = 16
=> x = 2
vậy x = 2
Ta có : \(x^4=16\)
\(\Rightarrow x^4=\left(\pm2\right)^4\)
\(\Rightarrow x=\pm2\)
Vậy \(x=-2;2\)
x4=16
=> \(\sqrt{\left(x^2\right)^2}=\sqrt{16}\)
=>Ix2I = 4
=>x2 = 4
=>x = +2;-2
\(x^4=16\)
\(\Rightarrow\orbr{\begin{cases}x^4=2^4\\x^4=\left(-2\right)^4\end{cases}}\Rightarrow\orbr{\begin{cases}x=2\\x=-2\end{cases}}\)
Vậy x = 2 hoặc x = -2
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