Answer: 13
Step-by-step explanation:
If you remember the quadratic equation formula;
[tex]x=\frac{-b\frac{+}{}\sqrt{b^2-4ac} }{2a}[/tex]
You can easily extract what is under the root to find the discriminant.
[tex]b^2-4ac=?\\[/tex]
a = 3
b = 7
c = 3
[tex](7)^2-4(3)(3)\\49-36=13[/tex]
