Câu hỏi của Gia Huy To

Question

$\dfrac{3^{10}.15^5}{25^3.9^7}$

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456 · Accepted Answer

$\dfrac{3^{10}.15^5}{25^3.9^7}$

$=\dfrac{3^{10}.3^55^5}{\left(5^2\right)^3.\left(3^2\right)^7}$

$=\dfrac{3^{15}.5^5}{5^6.3^{14}}$

$=\dfrac{3.1}{5.1}$

$=\dfrac{3}{5}$Câu trả lời: $\dfrac{3^{10}.15^5}{25^3.9^7}$

$=\dfrac{3^{10}.3^55^5}{\left(5^2\right)^3.\left(3^2\right)^7}$

$=\dfrac{3^{15}.5^5}{5^6.3^{14}}$

$=\dfrac{3.1}{5.1}$

$=\dfrac{3}{5}$