Question

a)\(\dfrac{15^8.27^2.2^{24}}{6^{14}.10^9}\) b)\(\dfrac{2^7.9^3}{6^3.8^2}\) c)\(\left(\dfrac{-2}{3}\right)^{3:}\left(\dfrac{-2}{3}\right)^2+\dfrac{2^{40}.3^{29}}{8^{13}.9^{15}}\) giúp mk với mk đang cần gấp

Answer 1

a: \(=\dfrac{5^8\cdot3^8\cdot3^6\cdot2^{24}}{2^{14}\cdot3^{14}\cdot2^9\cdot5^9}=\dfrac{5^8\cdot3^{14}\cdot2^{24}}{2^{23}\cdot3^{14}\cdot5^9}=\dfrac{2}{5}\)

b: \(=\dfrac{2^7\cdot3^6}{2^3\cdot2^6\cdot3^3}=\dfrac{27}{4}\)

c: \(=\left(-\dfrac{2}{3}\right)^1+\dfrac{2^{40}\cdot3^{29}}{2^{39}\cdot3^{30}}=\dfrac{-2}{3}+\dfrac{2}{3}=0\)