**Quadratic Equations**

**Factoring Quadratic Equations (I)**

- Quadratic equations of the form
**ax² + bx + c ( a=1)** - Step-by-step factoring process of simple quadratic equations
- Finding the 2 roots that satisfy the quadratic equation.

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**Factoring Quadratic Equations (II)**

- Quadratic equations of the form
**ax² + bx + c (a≠1)** - Step-by-step factoring process of more complex quadratic equations
- Finding the 2 roots that satisfy the quadratic equation.

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**Quadratic Formula**

- Use when factoring cannot be done
- Always use when told to find roots to 1,2,3..... decimal places

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**Quadratic Formula - 1 Root / No Roots**

**1 Root**

**When b² - 4ac = 0**- The curve, when drawn on a graph, intersect the x-axis at one point only
- 1 x-value that will make the equation equal to 0

**No Roots **

**When b² - 4ac < 0**- The curve, when drawn on a graph, does not cross the x-axis at all
- No x-values that will make the equation equal to 0

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