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Simplifying Rational Functions with Factoring and GCFs  Problem 9
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
To reduce a fraction, you need to rewrite both top and bottom in most factored form and then look for common factors on top and bottom to cross out. If the leading coefficient, "a", is not one, you'll need to make sure you are factoring properly. Once the bottom is fully factored, set each factor equal to zero and solve for x to find any excluded values, which are values of x that would have you dividing by zero. Use factors of the original denominator to find all of the excluded values.
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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.
Sample Problems (15)
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Simplifying Rational Functions with Factoring and GCFs
Problem 1 6,239 viewsSimplify and find any excluded values.
4x³ 16x 
Simplifying Rational Functions with Factoring and GCFs
Problem 2 5,744 viewsSimplify and find any excluded values.
18x³ 6x + 12 
Simplifying Rational Functions with Factoring and GCFs
Problem 3 5,038 viewsSimplify and find any excluded values.
8m + 16 2m² + 5m + 2 
Simplifying Rational Functions with Factoring and GCFs
Problem 4 4,675 viewsSimplify and find any excluded values.
9 − 3x 3x² − 9 − 6x 
Simplifying Rational Functions with Factoring and GCFs
Problem 5 784 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 6 757 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 7 714 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 8 765 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 9 631 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 10 710 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 11 817 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 12 650 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 13 693 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 14 744 views 
Simplifying Rational Functions with Factoring and GCFs
Problem 15 689 views
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