Adding Radical Expressions
You can only add radicals that have the same radicand (the same expression inside the square root). Here's how to add them:
1) Make sure the radicands are the same. If not, you cannot add them. 2) Add the outside numbers 3) Keep the radicand (the inside) the same. Let's examine a few examples.
1) ![]() Since the radicands match, all we have to do is add 3+4 and keep the ![]() 2) ![]() There is an understood one in front of ![]() ![]() 3) ![]() Don't let negatives through you off. -2-8=-10 and ![]() 4) ![]() This one cannot be added since the radicands do not match. This is the final answer. 5) ![]() At first glance, it appears this one cannot be added. However, ![]() ![]() ![]() Practice: Add the radicals.
1) ![]() 2) ![]() 3) ![]() 4) ![]() 5) ![]() Answers: 1) ![]() ![]() ![]() ![]() ![]() |
Related Links: Math Algebra Factors |