How to Add and Subtract Radical Expressions? (+FREE Worksheet!)
Adding and subtracting radical expressions works just like combining like terms with variables. You can only combine radicals that have the same index and the same radicand. Mastering this skill requires simplifying each radical first, then grouping and combining the ones that match. This guide shows you the complete process with worked examples, two video […]
How to Find Equation of a Circle? (+FREE Worksheet!)
Find the equation of a circle from its center and radius. The equation of a circle with center (h, k) and radius r is (x minus h) squared plus (y minus k) squared equals r squared. If the equation is not in that form, completing the square on both variables gets it there. Exercises for […]
