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2. Simplifica cada radical buscando ra semejantes y reduce. a. \( 3 \sqrt[3]{81}-4 \sqrt[3]{192}+5 \sqrt[3]{648} \)

Ask by Frazier Davey. in Colombia
Mar 17,2025

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La expresión simplificada es \( 23\sqrt[3]{3} \).

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The Deep Dive

Para simplificar cada radical, primero identificamos los factores que se pueden simplificar. Por ejemplo, \( \sqrt[3]{81} \) se puede reescribir como \( \sqrt[3]{3^4} = 3 \sqrt[3]{3} \), así que \( 3 \sqrt[3]{81} = 9 \sqrt[3]{3} \). Luego, \( \sqrt[3]{192} = \sqrt[3]{64 \cdot 3} = 4 \sqrt[3]{3} \). Finalmente, \( \sqrt[3]{648} = \sqrt[3]{216 \cdot 3} = 6\sqrt[3]{3} \). Así que al agruparlos, tenemos: \[ 9 \sqrt[3]{3} - 4 \cdot 4 \sqrt[3]{3} + 5 \cdot 6 \sqrt[3]{3} = (9 - 16 + 30)\sqrt[3]{3} = 23 \sqrt[3]{3}. \] Así que la expresión simplificada es \( 23 \sqrt[3]{3} \). ¡Y ahí lo tienes! Simplificado y sin dejar de disfrutar el proceso.

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