Answer:
X = unknown
The highest degree of x is 2 .
Explanation:
First of all x is the unknown variable to be determined by solving quadratically
Quadratic equation was chooses because of the degree of x.
The highest degree of x is 2 .
That's the the reason why the value of x will always be double.
If solving linear equation that has degree one, the value of x is one
If solving polynomial, the value of x will be 3 above.