Answer:
[tex]x=11\\[/tex]
Step-by-step explanation:
[tex]6x^2=726[/tex] First, you need to divide everything by 6.
[tex]x^2=121[/tex]Then you put everything in a radical to get this:
[tex]x=11[/tex]
[tex]6 {x}^{2} = 726 \\ \frac{6 {x}^{2} }{6} = \frac{726}{6} \\ {x}^{2} = 121 \\ x = \sqrt{121} \\ x = 11[/tex]
