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Adding and Subtracting Radical Expressions  Problem 5
Alissa Fong
Alissa Fong
MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
We can only add or subtract radical terms if they have the exact same radicand, or number and variables under the square root sign. Sometimes we will need to simplify the radicands first to see if they can be combined. Here we simplify using numbers and letters both , and then combine like terms appropriately.
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Alissa Fong
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.”
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Sample Problems (9)
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Adding and Subtracting Radical Expressions
Problem 1 9,776 viewsSimplify:
8√3 − 5√3 + 10√3 
Adding and Subtracting Radical Expressions
Problem 2 8,391 viewsSimplify:
4√5 − 3√45 + 10√80 
Adding and Subtracting Radical Expressions
Problem 3 6,873 viewsSimplify:
√125x + 4√20x − 3√45x 
Adding and Subtracting Radical Expressions
Problem 4 6,123 viewsSimplify:
3√x + y√x + 2√y²x 
Adding and Subtracting Radical Expressions
Problem 5 836 views 
Adding and Subtracting Radical Expressions
Problem 6 1,099 views 
Adding and Subtracting Radical Expressions
Problem 7 649 views 
Adding and Subtracting Radical Expressions
Problem 8 540 views 
Adding and Subtracting Radical Expressions
Problem 9 527 views
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