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Quadratic equations. Vieta's formulas

The solutions $x_1$ and $x_2$ of the quadratic equation $ax^2+bx+c=0$ can be found by special Vieta’s formulas.

$$x_1 + x_2 = -\frac{b}{a}, \ \ x_1 \cdot x_2 = \frac{c}{a}$$

2020-11-29

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