Answer:
[tex]\large\boxed{x=\pm\sqrt{13}}[/tex]
Step-by-step explanation:
[tex]10x^2-6=144\qquad\text{add 6 to both sides}\\\\10x^2=130\qquad\text{divide both sides by 10}\\\\x^2=13\to x=\pm\sqrt{13}[/tex]