Factor a quadratic expression to reveal the zeros of the function it defines.
HSA.CED.A.1
Create equations and inequalities in one variable and use them to solve problems.
HSA.CED.A.2
Create equations in two or more variables to represent relationships between quantities; graph equations on coordinate axes with labels and scales.
HSA.REI.B.4
Solve quadratic equations in one variable.
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.
