Question 4: Find the value of \(x\) in the following equations:
\((ii)\) \(\quad\) \(log_{2} \ x+log_{2} \ 8=5\)
Solution:
\[
\begin{align*}
\log_{2} x+\log_{2} 8&=5\\
\log_{2} x&=5-\log_{2} 8\\
\log_{2} x&=5-3\\
\log_{2} x&=2\\
x&=2^{2}\\
x&=4
\end{align*}
\]