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Question
11 which expression is equivalent to $sqrt3{54}$ in simplest radical form? a $3sqrt3{6}$ b $6sqrt3{3}$ c $3sqrt3{2}$ d $2sqrt3{9}$
Step1: Factorizar 54
Descomponemos 54 en factores primos: $54 = 2\times3^3$.
Step2: Reescribir la raíz cúbica
$\sqrt[3]{54}=\sqrt[3]{2\times3^3}$.
Step3: Aplicar la propiedad de la raíz
Según la propiedad $\sqrt[3]{ab}=\sqrt[3]{a}\cdot\sqrt[3]{b}$, tenemos $\sqrt[3]{2\times3^3}=\sqrt[3]{3^3}\cdot\sqrt[3]{2}$.
Step4: Simplificar
Como $\sqrt[3]{3^3}=3$, entonces $\sqrt[3]{54}=3\sqrt[3]{2}$.
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C. $3\sqrt[3]{2}$