Skip to main content
California Department of Education Logo

A-REI.4.a (Mathematics)


Standard Identifier: A-REI.4.a
Content Area: Mathematics
Grade Range: 8–12
Domain: Reasoning with Equations and Inequalities
Discipline: Math II
Conceptual Category: Algebra

Cluster:
Solve equations and inequalities in one variable. [Quadratics with real coefficients]

Standard:
Solve quadratic equations in one variable. 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.

Questions: Curriculum Frameworks and Instructional Resources Division | CFIRD@cde.ca.gov | 916-319-0881