Question

ab raiz quadrada de 27 a na 2 por 3

Answer 1

$\frac{ \sqrt{27a^2} }{3} = \frac{ \sqrt{9\cdot3a^2} }{3} = \frac{ \sqrt{9}\cdot \sqrt{3}\cdot \sqrt{a^2} }{3} = \frac{ \sqrt{9}\cdot \sqrt{a^2}\cdot \sqrt{3} }{3} =\frac{ 3a \sqrt{3}}{3} =a \sqrt{3}$