Problem
\( \left(-\frac{2}{3}\right)^{2} \)
Solution
Step 1 ：\(\left(-\frac{2}{3}\right)^{2} = (-1)^{2}\left(\frac{2}{3}\right)^{2}\)
Step 2 ：\(=(-1)^{2} \cdot \frac{2^2}{3^2}\)
Step 3 ：\(=\frac{4}{9}\)
Step 1 ：\(\left(-\frac{2}{3}\right)^{2} = (-1)^{2}\left(\frac{2}{3}\right)^{2}\)
Step 2 ：\(=(-1)^{2} \cdot \frac{2^2}{3^2}\)
Step 3 ：\(=\frac{4}{9}\)
