How to solve a quadratic equation by completing the square.
How to find square roots of integers.
How to recognize and factor a binomial that is the difference of perfect squares.
How to solve quadratic equations using square roots.
How to use matrices to solve a system of equations.
How to factor perfect square trinomials.
How to recognize special products of polynomials.
How to simplify radicands.
How to solve a system of equations.
How to add and subtract radical expressions.