Solve quadratic equations in one variable. V: Shows how the quadratic formula results from completing the square. a. Use the method of completing the square to A.REI.4a transform any quadratic equation in x into an V: Song on the quadratic formula equation of the form (x-p)2=q that has the same solutions. Derive the quadratic formula from this form. ML: Lesson on factoring. b. Solve quadratic equations by inspection (e.g., for x2 = 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 A.REI.4b V: Multiple videos on how to solve quadratics. complex solutions and write them as a ± bi for real numbers a and b. Standards Key ideas and Details Intervention Supports
A.REI.4a A.REI.4b Solve quadratic equations in one variable. 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. b. Solve quadratic equations by inspection (e.g., for x2 = 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. V: Shows how the quadratic formula results from completing the square. V: Song on the quadratic formula ML: Lesson on factoring. V: Multiple videos on how to solve quadratics. Standards Key ideas and Details Intervention Supports