Thank you DragonLord I honestly forgot about that formula
Its ok, there are many other ways to do that problem (eg. completing the square, factoring), just remember the formula is \(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\) :D
+304 
just remember the formula is \(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\) :D
