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A quadratic inequality is one that includes an Steps
Part 1 Part 1 of 4:Factoring the Inequality
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Part 2 Part 2 of 4:Determining the Roots of the Inequality
Part 3 Part 3 of 4:Plotting the Solution Set on a Number Line
Part 4 Part 4 of 4:Plotting the Solution Set on a Coordinate Plane
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wikiHow Staff wikiHow Staff Writer This article was co-authored by wikiHow Staff. Our trained team of editors and researchers validate articles for accuracy and comprehensiveness. wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. This article has been viewed 142,625 times.
Co-authors: 19 Updated: June 4, 2020 Views:142,625 Article Rating:64% - 40 votes Categories: Algebra Article SummaryX To solve a quadratic inequality, first write it as ax^2 + bx + c is less than 0. Then find 2 factors whose product is its first term and 2 factors whose product is its third term. Be sure the 2 factors whose product is its third term also have a sum that’s equal to its second term. Now determine whether your factors have the same or opposite signs by seeing if the product of the factors is greater or less than 0. Finally, turn each factor into an inequality, simplify, and check the validity of the roots for each option. If you want to learn how to show the solutions on a number line, keep reading the article! In other languages
Español:resolver inecuaciones cuadráticas Русский:решать квадратные неравенства Italiano:Risolvere le Disequazioni di Secondo Grado Français:résoudre des inégalités du second degré
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