Express square root 84/2 square root 3 in simplest radical form.

$$\frac{\sqrt{84}}{2}}\times\sqrt3\\\\ =\frac{\sqrt{4\times 21}}{2}\times\sqrt3\\\\ =\frac{\sqrt{4}\times \sqrt{21}}{2}\times\sqrt3\\\\ =\frac{2\times \sqrt{21}}{2}\times\sqrt3\\\\ =\sqrt{21}\times\sqrt3\\\\ =\sqrt{7}\times\sqrt3 \sqrt3\\\\ =3\sqrt{7}\\\\$$

ur mther 5/neg 3 square

oh ok thank you