Kết quả của phép tính \(\left(-0,5\right)^3.\left(-0,5\right)^4:\left(\dfrac{-1}{2}\right)^2\) là
\(\dfrac{1}{2}.\)\(-\dfrac{1}{4}.\)\(\dfrac{1}{16}.\)\(-\dfrac{1}{32}.\)Hướng dẫn giải:\(\left(-0,5\right)^3.\left(-0,5\right)^4:\left(\dfrac{-1}{2}\right)^2=\left(\dfrac{-1}{2}\right)^3.\left(\dfrac{-1}{2}\right)^4:\left(\dfrac{-1}{2}\right)^2=\left(\dfrac{-1}{2}\right)^{3+4-2}=\left(\dfrac{-1}{2}\right)^5=\dfrac{\left(-1\right)^5}{2^5}=\dfrac{-1}{32}.\)
