Câu hỏi của Linh Phan

Question

Thực hiện phép tính

( 2² x 3 ) ⁸ : (8⁵ x 9⁴)

KWS · Accepted Answer

$\left(2^2\times3\right)^8:\left(8^5\times9^4\right)$

$=\left[\left(2^2\right)^8:3^8\right]:\left[\left(2^3\right)^5\times\left(3^2\right)^4\right]$

$=\left(2^{16}\times3^8\right):\left(2^{15}\times3^8\right)$

$=\frac{2^{16}\times3^8}{2^{15}\times3^8}=\frac{2^{16}}{2^{15}}=2$

Câu trả lời:

$\left(2^2\times3\right)^8:\left(8^5\times9^4\right)$

$=\left[\left(2^2\right)^8:3^8\right]:\left[\left(2^3\right)^5\times\left(3^2\right)^4\right]$

$=\left(2^{16}\times3^8\right):\left(2^{15}\times3^8\right)$

$=\frac{2^{16}\times3^8}{2^{15}\times3^8}=\frac{2^{16}}{2^{15}}=2$