Solving Equations: Unknowns Both Sides Solving with Unknowns on Both Sides (pdf) Solving with Unknowns on Both Sides (doc)

Solving Quadratic Equations from Functions Solving Quadratic Equations from Functions (pdf) Solving Quadratic Equations from Functions (doc)

Evaluating Composite Functions Evaluating Composite Functions (pdf) Evaluating Composite Functions (doc)

Finding the Equation of Tangents to Circles at a Point Finding the Equation of Tangents to Circles (pdf) Finding the Equation of Tangents to Circles (doc)