Two radicals can be added if and only if they have the same number/variable(s) under the square root- or radicand. Often, you will need to simplify radicals first in order to tell if they can be combined. Here, we simplify radicals and multiply by coefficients out front to see if we have "like radicands" that can be combined. The numbers outside the square roots will be added/subtracted, and the number inside the root will remain unchanged.
Transcript Coming Soon!
Please enter your name.
Are you sure you want to delete this comment?
Experience the 'A-Ha!' moment with the best teachers
whom we hand-picked for you!
M.A. in Secondary Mathematics, Stanford University B.S., Stanford University
Alissa has a quirky sense of humor and a relatable personality that make it easy for students to pay attention and understand the material. She has all the math tips and tricks students are looking for.
“Your tutorials are good and you have a personality as well. I hope you have more advanced college level stuff, because I like the way you teach.”
“Thanks alot for such great lectures... I never found learning this easier ever before... keep up the great work.... :)”
“You seem so kind, it's awesome. Easier to learn from people who seem to be rooting for ya!' thanks”