Question

determine: $\sqrt[2]{64} \sqrt[2]{81}$

Answer 1

Oie, Td Bom?!

$= \sqrt{64} \: . \: \sqrt{81}$

$= \sqrt{8 {}^{2} } \: . \: \sqrt{9 {}^{2} }$

$= 8 \: . \: 9$

$= 72$

Att. Makaveli1996