1. The user asked for "code tex" which is ambiguous but likely refers to LaTeX code or math typesetting. 2. Since no specific math problem is given, I will provide a simple example of LaTeX code for a quadratic formula. 3. The quadratic formula is used to solve equations of the form $ax^2 + bx + c = 0$. 4. The formula is: $$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$ 5. This formula gives the roots of the quadratic equation by substituting values of $a$, $b$, and $c$. 6. This is a basic LaTeX code snippet for math typesetting.