How to solve equations with the same variable on both sides.
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 factor perfect square trinomials.
How to recognize special products of polynomials.
How to simplify radicands.
How to add and subtract radical expressions.