Home/Algebra/Inequalities/Quadratic inequality8. InequalitiesQuadratic inequalityLevel: fundamentalIn 8. InequalitiesFormulaCopy LaTeXax2+bx+c>0ax^2+bx+c>0ax2+bx+c>0Tagsalgebraalgebra formulainequalitiesDetailIt is solved using roots and sign analysis.Explore the ideaFound an error? Contact us.Related formulasRelatedQuadratic formulax=−b±b2−4ac2ax=\frac{-b\pm\sqrt{b^2-4ac}}{2a}x=2a−b±b2−4acOpen formulaOpen in sectionRelatedDiscriminantΔ=b2−4ac\Delta=b^2-4acΔ=b2−4acOpen formulaOpen in section