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Simplifying Rational Functions with Factoring and GCFs  Problem 6
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
Fractions that have radicals, or roots, in them are commonly faced when working with the quadratic formula. To simplify the expression, first simplify the radical if possible. Next, look for a common factor in the numerator, looking at the outside only of the radical. Once that greatest common factor has been "undistributed," you can look to reduce that value with something from the denominator. You can check your work using a calculator by finding a decimal approximation for your original problem and comparing it to a decimal approximation for your final result.
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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 (15)
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Simplifying Rational Functions with Factoring and GCFs
Problem 1 5,849 viewsSimplify and find any excluded values.
4x³ 16x 
Simplifying Rational Functions with Factoring and GCFs
Problem 2 5,271 viewsSimplify and find any excluded values.
18x³ 6x + 12 
Simplifying Rational Functions with Factoring and GCFs
Problem 3 4,775 viewsSimplify and find any excluded values.
8m + 16 2m² + 5m + 2 
Simplifying Rational Functions with Factoring and GCFs
Problem 4 4,316 viewsSimplify and find any excluded values.
9 − 3x 3x² − 9 − 6x 
Simplifying Rational Functions with Factoring and GCFs
Problem 5 613 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 6 588 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 7 546 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 8 578 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 9 469 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 10 529 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 11 642 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 12 520 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 13 534 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 14 584 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 15 523 views
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