PLEASE HELP IM TIMED!!!!!! +10 points and BRAINLIEST!!!!

Answer:
x= ± [tex]4\sqrt{3}[/tex]
Step-by-step explanation:
First of all, 16/(1/3) is 48, so [tex]x^{2} = 48[/tex]
[tex]x = +- \sqrt{48}[/tex]
[tex]\sqrt{48}[/tex] is equivilant to [tex]4\sqrt{3}[/tex]