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Bài 36 : ( sgk/ 36)
a) \(10^8.2^8=\left(10.2\right)^8=20^8\) b)\(10^8:2^8=\left(10:2\right)^8=5^8\)
c) \(25^4.2^8=\left(5^2\right)^4.2^8=5^8.2^8=\left(5.2\right)^8=10^8\)
d)\(15^8.9^4=15^8.\left(3^2\right)^4=15^8.3^8=\left(15.3\right)^8=45^8\)
e) \(27^2:25^5=\left(3^3\right)^2:\left(5^2\right)^5=3^6:5^{10}....\)