Question

(2/3m²n³)² qual a solução ?

Answer 1

[ ( 2/3) m² . n³ ]²
( 2/3)² = 2/3 * 2/3 =  4/9 ***
( m²)² =  ( m)^4    
nota 2* 2 = 4
(n³)² =  ( n )^6
nota 3 * 2 = 6 
resposta >>>  4/9 . m^4 .n^6******