Use the structure of an expression to identify ways to rewrite it.
HSA.CED.A.4(A2)
Rearrange formulas to highlight a quantity of interest, using the same reasoning as in solving equations.
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.
