Welcome to the woodhouse. . .

here you'll find a concise guide to a few important algebra concepts.
on these pages, there are examples and explanations of:

• rational and irrational numbers
• square roots
• approximating square roots
• the Pythagorean Theorem
• simplifying radicals
• adding and subtracting radicals
• multiplying and dividing  radicals
• radical equations
• the square root property
• completing the square
• the quadratic formula
• problem solving: quadratic equations and geometry
• quadratic functions
• quadratic functions and the discriminant