College Algebra / Unit 4 Alg 196 short lesson, about 20 seconds
Quadratic Equations
Captions available
The idea
A quadratic equation can be written in standard form ax² + bx + c = 0 with a nonzero; the defining feature is degree 2.
In practice
x² − x − 6 = 0 qualifies; 3x + 7 = 19 stays linear.
Where people slip
Standard form first; every method reads from there.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
- Nothing. This is a starting point.
Unlocks
- Nothing yet depends on this.
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