\(\left(-\dfrac{1}{16}\right)^{300}=\left(\dfrac{1}{16}\right)^{300}=\left[\left(\dfrac{1}{2}\right)^4\right]^{300}=\left(\dfrac{1}{2}\right)^{1200}\\ \left(-\dfrac{1}{2}\right)^{500}=\left(\dfrac{1}{2}\right)^{500}\)
vì `1200>500` nên \(\left(\dfrac{1}{2}\right)^{1200}>\left(\dfrac{1}{2}\right)^{500}\)
vậy \(\left(-\dfrac{1}{16}\right)^{300}>\left(-\dfrac{1}{2}\right)^{500}\)