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Bom dia Shopia!
Solução!
Para resolver esse exercicio basta subtrair os expoentes que tem as bases iguais.
![\dfrac{a}{b}= \dfrac{2^{7}\times3^{8}\times7 }{2^{5} \times3^{6} }\\\\\\\
\dfrac{a}{b}= \dfrac{2^{2}\times3^{2}\times7 }{ 1}\\\\\\\
\dfrac{a}{b}= 4\times9\times7\\\\\\\
\dfrac{a}{b}= 252\\\\\\\\\\\\\\
\boxed{Resposta=252~~alternativa~~A}](https://tex.z-dn.net/?f=+%5Cdfrac%7Ba%7D%7Bb%7D%3D+%5Cdfrac%7B2%5E%7B7%7D%5Ctimes3%5E%7B8%7D%5Ctimes7++%7D%7B2%5E%7B5%7D+%5Ctimes3%5E%7B6%7D++%7D%5C%5C%5C%5C%5C%5C%5C%0A+%5Cdfrac%7Ba%7D%7Bb%7D%3D+%5Cdfrac%7B2%5E%7B2%7D%5Ctimes3%5E%7B2%7D%5Ctimes7++%7D%7B+1%7D%5C%5C%5C%5C%5C%5C%5C%0A++%5Cdfrac%7Ba%7D%7Bb%7D%3D+4%5Ctimes9%5Ctimes7%5C%5C%5C%5C%5C%5C%5C+%0A+%5Cdfrac%7Ba%7D%7Bb%7D%3D+252%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%5C%0A%5Cboxed%7BResposta%3D252%7E%7Ealternativa%7E%7EA%7D "\dfrac{a}{b}= \dfrac{2^{7}\times3^{8}\times7 }{2^{5} \times3^{6} }\\\\\\\
\dfrac{a}{b}= \dfrac{2^{2}\times3^{2}\times7 }{ 1}\\\\\\\
\dfrac{a}{b}= 4\times9\times7\\\\\\\
\dfrac{a}{b}= 252\\\\\\\\\\\\\\
\boxed{Resposta=252~~alternativa~~A}")
Bom dia!
Bons estudos!
Solução!
Para resolver esse exercicio basta subtrair os expoentes que tem as bases iguais.
Bom dia!
Bons estudos!
Anônimo:
Obrigado Sophia pela melhor resposta.Valeu!
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