Answer:
[tex]x=11[/tex]
Step-by-step explanation:
Step 1: Divide both sides by 6
[tex]6x^2 / 6 = 726 / 6[/tex]
[tex]x^2 = 121[/tex]
Step 2: Square root both sides
[tex]\sqrt{x^2} = \sqrt{121}[/tex]
[tex]x = 11[/tex]
Answer: [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]
