Answer:
(√2)/x²
Step-by-step explanation:
[tex]\dfrac{\sqrt{18x}}{3\sqrt{x^5}}=\sqrt{\dfrac{18x}{9x^5}}=\sqrt{\dfrac{2}{x^4}}=\dfrac{\sqrt{2}}{x^2}[/tex]
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Or, maybe you mean ...
[tex]\dfrac{\sqrt{18}x}{3\sqrt{x^5}}=\sqrt{\dfrac{18x^2}{9x^5}}=\sqrt{\dfrac{2x}{x^4}}=\dfrac{\sqrt{2x}}{x^2}[/tex]