Question

I want to know how you produce 9√3=√3a²/4

Answer 1

$9 \sqrt{3} = \frac{\sqrt{3} {a}^{2} }{4} \\ \\ 9 = \frac{ {a}^{2} }{4} \\ \\ 9 \times 4 = {a}^{2} \\ \\ {6}^{2} = {a}^{2} \\ \\ a = 6$