simplify. (-27)^(2/3)

Explanation:

Step1: Use the exponent rule (a^{\frac{m}{n}}=\sqrt[n]{a^m})

((-27)^{\frac{2}{3}}=\sqrt[3]{(-27)^2})

Step2: Calculate ((-27)^2)

((-27)^2 = 729)

Step3: Calculate (\sqrt[3]{729})

Since (9\times9\times9 = 729), (\sqrt[3]{729}=9)

Answer:

(9)