Quadratic parabola: two solutions, one solution, no solution
- Factoring,
- Quadratic,
- complete square
LESSON 19 Factoring Trinomials
LESSON 20 Quadratic Equations—Factoring
LESSON 21 Quadratic Equations—The Quadratic Formula
LESSON 22 Quadratic Equations—Completing the Square
Don't confused with solution of 9, it is ±3, square root of 9 is 3.
3x2 + 12x = 36 -> x2 + 4x = 12, need to divide coefficient 3 first when doing complete square.
LESSON 23 Representations of Quadratic Functions
LESSON 24 Quadratic Equations in the Real World
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