Answer:
[tex] \frac{ \sqrt{6} }{6} [/tex]
solution:
[tex] {6x}^{2} + 9 = 10[/tex]
[tex] {6x}^{2} = 10 - 9[/tex]
[tex] {6x}^{2} = 1[/tex]
[tex] \frac{ {6x}^{2} }{6} = \frac{1}{6} [/tex]
[tex] {x}^{2} = \sqrt{ \frac{1}{6} } [/tex]
[tex]x = \frac{ \sqrt{6} }{6} [/tex]
