Question

5 căn 9 - căn 36

Answer 1

=5.3-6=15-6=9

Answer 2

\(5\sqrt{9}-\sqrt{36}=5.3-6=15-6=9\)

Answer 3

`5\sqrt{9}-\sqrt{36}=5\sqrt{3^2}-\sqrt{6^2}=5.3-6=15-6=9`