Answer: 13
Step-by-step explanation:
If you remember the quadratic equation formula;
![x=\frac{-b\frac{+}{}\sqrt{b^2-4ac} }{2a}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-b%5Cfrac%7B%2B%7D%7B%7D%5Csqrt%7Bb%5E2-4ac%7D%20%20%7D%7B2a%7D)
You can easily extract what is under the root to find the discriminant.
![b^2-4ac=?\\](https://tex.z-dn.net/?f=b%5E2-4ac%3D%3F%5C%5C)
a = 3
b = 7
c = 3
![(7)^2-4(3)(3)\\49-36=13](https://tex.z-dn.net/?f=%287%29%5E2-4%283%29%283%29%5C%5C49-36%3D13)
use quizzes and type line plot and your question it helps alot
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