解二次方程 (因式法) | Solving Quadratic Equations by Factor Method

二次公式 | Quadratic Formula

解二次方程 (圖解法) | Solving Quadratic Equations by Graphical Method

判別式 | Discriminant

兩根的和與積 | Sum and Product of Roots

線性與二次方程所組成的聯立方程 (代數法) | Simultaneous Equations (One Linear and One Quadratic) (Algebraic Method)

線性與二次方程所組成的聯立方程 (圖解法) | Simultaneous Equations (One Linear and One Quadratic) (Graphical Method)

將方程轉換成二次方程 | Transforming Equations into Quadratic Equations