Volgorde van bewerkingen (gevorderd)

Reken uit

\(\left(-\dfrac{4}{3}\cdot\dfrac{15}{28}-\dfrac{1}{7}\right)^2\)

\(\left(-\dfrac{4}{3}\cdot\dfrac{15}{28}-\dfrac{1}{7}\right)^2= \left(-\dfrac{4.15}{3.28}-\dfrac{1}{7}\right)^2= \left(-\dfrac{5}{7}-\dfrac{1}{7}\right)^2= \left(-\dfrac{5}{7}-\dfrac{1}{7}\right)^2= \left(\dfrac{-6}{7}\right)^2= \dfrac{36}{49}\)