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Simplifying Rational Functions with Factoring and GCFs  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
If you have a binomial in top of a fraction and monomial in the bottom, many students get confused about which parts can be reduced. Here, we look at a strategy of rewriting the fraction as two separate fractions, and then reducing each one separately. This technique is commonly used in simplifying in the last step of the quadratic formula. Another method is to factor out the GCF, or greatest common factor of both terms in the top, and then reducing that GCF with the 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 (15)
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Simplifying Rational Functions with Factoring and GCFs
Problem 1 5,775 viewsSimplify and find any excluded values.
4x³ 16x 
Simplifying Rational Functions with Factoring and GCFs
Problem 2 5,202 viewsSimplify and find any excluded values.
18x³ 6x + 12 
Simplifying Rational Functions with Factoring and GCFs
Problem 3 4,731 viewsSimplify and find any excluded values.
8m + 16 2m² + 5m + 2 
Simplifying Rational Functions with Factoring and GCFs
Problem 4 4,267 viewsSimplify and find any excluded values.
9 − 3x 3x² − 9 − 6x 
Simplifying Rational Functions with Factoring and GCFs
Problem 5 588 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 6 568 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 7 528 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 8 557 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 9 449 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 10 507 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 11 622 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 12 496 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 13 517 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 14 561 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 15 505 views
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