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Update Unit 2: Quadratic Equations.md

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James Su 2019-10-09 13:34:01 +00:00
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Grade 10/Math/MPM2DZ/Unit 2: Quadratic Equations.md
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@ -58,7 +58,7 @@ x = \dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a} \\
- The formula is derived from completing the square.
- The **sums of the roots** is simply $`\dfrac{-b}{a}`$, or $`X_1 + X_2 = \dfrac{-b}{a}`$
- The **products of the roots**, is simply $`\dfrac{c}{a}`$, or $`(X_1)(X_2) = \dfrac{c}{a}`$
- The **Axis of Symmetry** is at $`\drac{-b}{2a}`$
- The **Axis of Symmetry** is at $`\dfrac{-b}{2a}`$
## Discriminant
- $`D =b^2 - 4ac`$, this is also part of the **quadratic formula**!