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A quadratic equation is a polynomial equation of the second degree (known as early as 2000 BC), where x represents an unknown, and a, b, and c known numbers.

$$ax^{2}+bx+c=0$$

a =

b =

c =

$$x=\frac{-b\pm \sqrt{b^{2}-4ac}}{2a}$$

x1 =

x2 =