### Math Notes

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#### Algebra Solutions

##### Topics || Problems

$$x_1 +x_2 = \frac{-b + \sqrt{b^2-4ac}}{2a} + \frac{-b - \sqrt{b^2-4ac}}{2a}$$
$$x_1 +x_2 = \frac{-2b}{2a}$$
$$x_1 + x_2 = \frac{-b}{a}$$: The sum of roots of a quadratic function