## CCSS.Math.Content.HSA.REI.B.4 - Solve quadratic equations in one variable.

## CCSS.Math.Content.HSA.REI.B.4.A - Use the method of completing the square to transform any quadratic equation in x into an equation of the form (x - p)

^{2}= q that has the same solutions. Derive the quadratic formula from this form.

## CCSS.Math.Content.HSA.REI.B.4.B - Solve quadratic equations by inspection (e.g., for x

^{2}= 49), taking square roots, completing the square, the quadratic formula and factoring, as appropriate to the initial form of the equation. Recognize when the quadratic formula gives complex solutions and write them as a ± bi for real numbers a and b.

Authors: National Governors Association Center for Best Practices, Council of Chief State School OfficersTitle: CCSS.Math.Content.HSA.REI.B.4 Solve Quadratic Equations In One Variable. Reasoning with Equations & Inequalities - High School Algebra Mathematics Common Core State Standards

Publisher: National Governors Association Center for Best Practices, Council of Chief State School Officers, Washington D.C.

Copyright Date: 2010

(Page last edited 10/20/2014)

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