Làm tính chia :
a) \(5^3 : (-5)^2\)
b) \((\dfrac{3}{4})^5 : (\dfrac{3}{4})^3 \)
c) \(\)\((-12)^3:8^3\)
a) \(5^3 : (-5)^2\) \(= 5^3 : 5^2 = 5\)
b) \((\dfrac{3}{4})^5 : (\dfrac{3}{4})^3 \) \(= (\dfrac{3}{4})^2=\dfrac{9}{16}\)
c) \((-12)^3:8^3\) = \((-\dfrac{12}{8})^3=(-\dfrac{3}{2})^3=-\dfrac{27}{8}\)
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