Question
Find the cube root of the following numbers.

729

Answer

729
= (3 × 3) × (3 × 3) × (3 × 3)
= (3 × 3)³
= 9³
$
\begin{aligned}
&\therefore \sqrt[3]{729}=9\\
&\begin{array}{l|l}
3 & 729 \\
\hline 3 & 243 \\
\hline 3 & 81 \\
\hline 3 & 27 \\
\hline 3 & 9 \\
\hline 3 & 3 \\
\hline & 1
\end{array}
\end{aligned}
$

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