Ủa cái dấu ^ là cái gì vậy bạn ???!
\(\frac{\left(5^4-5^3\right)^3}{125^4}=\frac{500^3}{125^4}=\frac{4^3.125^3}{125^4}=\frac{4^3}{125}\)
\(\frac{\left(5^4-5^3\right)}{125^4}=\frac{500^3}{125^4}=\frac{4^3.125^3}{125^4}=\frac{4^3}{125}=\frac{4^3}{5^3}\)