[tex] \sf0=6x^2-23+20[/tex]
[tex] \\ [/tex]
[tex] \hookrightarrow\sf0=6x^2-3[/tex]
[tex] \\ [/tex]
[tex] \hookrightarrow\sf3=6x^2[/tex]
[tex] \\ [/tex]
[tex] \hookrightarrow\sf \dfrac{3}{6} =x^2[/tex]
[tex] \\ [/tex]
[tex] \hookrightarrow\sf\cancel \dfrac{3}{6} =x^2[/tex]
[tex] \\ [/tex]
[tex] \hookrightarrow\sf\dfrac{1}{2} =x^2[/tex]
[tex] \\ [/tex]
[tex] \hookrightarrow\sf x = \sqrt{ \dfrac{1}{2} } [/tex]
