Root of 9×4^3÷2^2 Many could not do it! Only for smart ones! American Math Olympiad

[@michaelwarren7394]

9 × 64 = 576....
576 ÷ 4 = 144...
sqrt(144)= 12

[@borisjeud8464]

12

[@MehnazAk-x4t]

√(9×16)=12

[@adgf1x]

sq root=12

[@Hewhowalks-fv5mq]

Long way to do it