Breadcrumb Home > Dictionary > Index Q quadratic formula: Meaning and Definition of Find definitions for: quadrat'ic for'mula Pronunciation: [key] — Math. Math. the formula for determining the roots of a quadratic equation from its coefficients:(−b ± b − 4ac&fullradicover;)/2a. x = Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quadratic form quadratic residue TrendingHere are the facts and trivia that people are buzzing about. The Book of 1 Corinthians: Summary Current Events This Week: June 2023 Languages Spoken in Each Country of the World Aesop's Fables: Aesop's Fables Milestones in Environmental Protection The 12 Labors of Hercules (In Order) ✖ Related Content Daily Word Quiz: soupon Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language