[tex]-3x^2=-105[/tex]
[tex]x^2= \dfrac{-105}{-3} [/tex] [tex]Divide \ both \ sides \ by \ -3[/tex]
[tex]x^2= \dfrac{105}{3} [/tex]
[tex]x^2=35[/tex]
[tex]x=+ \sqrt{35} [/tex] [tex]Take \ the \ square \ root \ of \ both \ sides[/tex]
[tex]x = 5.916[/tex] [tex]Solution[/tex]
