Question

Simplify: see above​

Answer 1

${27 {a}^{3} }^{ \frac{1}{3} } \\ = \\ {27}^{ \frac{1}{3} } \times {a}^{3 \times \frac{1}{3} } \\ = \\ 3 \times a \\ = 3a$

therefore the required result is 3A