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Multiplying and Distributing Radical Expressions  Problem 7
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
When you're multiplying fractions that have only integers in top and bottom, you could choose to reduce the fractions first and then multiply, OR to multiply first and then reduce the product later. The same is true if your fractions have radicals, or roots in them you could simplify the roots to begin with, or after you've multiplied it's your choice. Here we do problems in both ways to show how you'll get the same answer either way. Often, reducing first means you'll have smaller numbers to work with later.
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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.”
Thanks alot for such great lectures... I never found learning this easier ever before... keep up the great work.... :)”
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Sample Problems (7)
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Multiplying and Distributing Radical Expressions
Problem 1 8,640 viewsMultiply:
(3√6x)(2√6x) 
Multiplying and Distributing Radical Expressions
Problem 2 7,099 viewsSimplify:
√3x(√4x − 5) 
Multiplying and Distributing Radical Expressions
Problem 3 6,124 viewsSimplify:
(4 + √6)(3 − √6) 
Multiplying and Distributing Radical Expressions
Problem 4 5,389 viewsSimplify:
(2√10 + 3√5)(√10 − 3√5) 
Multiplying and Distributing Radical Expressions
Problem 5 803 views 
Multiplying and Distributing Radical Expressions
Problem 6 957 views 
Multiplying and Distributing Radical Expressions
Problem 7 666 views
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