College Algebra / Alg 209 · Atom · ~20 seconds
The Discriminant
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
The discriminant is the expression under the quadratic formula's radical, b² − 4ac; its sign announces the nature of the solutions before any solving.
Show
Positive 49: two real solutions. Zero, as in x² + 6x + 9: one repeated solution. Negative, as in x² + x + 1: two complex ones.
Builds on
- Nothing — this is a starting point.
Unlocks
- Nothing yet depends on this.