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Cubes and Cube Roots — Maths STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8MathsCubes and Cube Roots2 Marks
Question
Evaluate:
$\sqrt[3]{9261}$
✓

Answer

$\sqrt[3]{9261}$ By prime factorisation, we have$9261=\underline{3\times3\times3}\times\underline{7\times7\times7}$
$= (3\times7)^3$ $= (21)^3$ $\therefore\sqrt[3]{9261}=21$

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