Tính (-0,5)^5:(-0,5)^3-(17/2)^7:(17/2)^6

* Hướng dẫn giải

${\left(-\mathrm{0,5}\right)}^5:{\left(-\mathrm{0,5}\right)}^3-{\left(\frac{17}{2}\right)}^7:{\left(\frac{17}{2}\right)}^6={\left(-\mathrm{0,5}\right)}^2-\frac{17}{2}=\frac{1}{4}-\frac{17}{2}=-\frac{33}{4}$