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Greatest Common Factors  Problem 8
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
One way to find the greatest common factor of two monomials involves three steps: 1.) make a factor tree for both, breaking the integer into its prime factorization and writing out a list of the variables that are being multiplied, 2.)circle any "leaves" or bottom factors that are the same in both trees, and then 3.) multiply those circled leaves to find the GCF. This skill is particularly important when you go to add or subtract fractions that have variables and will need a common denominator.
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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.... :)”
You seem so kind, it's awesome. Easier to learn from people who seem to be rooting for ya!' thanks”
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Sample Problems (8)
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Greatest Common Factors
Problem 1 11,038 viewsFind the greatest common factor of
a) 24 and 60b) 18x² and 27x³ 
Greatest Common Factors
Problem 2 8,772 viewsFactor:
a) 5x³ + 10xb) 6p³ − 12p² − 60p 
Greatest Common Factors
Problem 3 7,183 viewsFactor:
3x(x + 6) − 10(x + 6) 
Greatest Common Factors
Problem 4 1,147 views 
Greatest Common Factors
Problem 5 1,137 views 
Greatest Common Factors
Problem 6 1,080 views 
Greatest Common Factors
Problem 7 1,012 views 
Greatest Common Factors
Problem 8 637 views
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