To find the greatest common factor of

Answer to Problem 71E
Explanation of Solution
Given information:
To find the greatest common factor of two or more algebraic expressions, find the greatest common factors of the numbers and the variables separately. After finding the two, multiply them, to reach the greatest common factors of the expressions combined.
Calculation:
Given,
First, find the greatest common factors of 21 and 25.
Factors of
Factors of
Highest common factor of 21 and 25
Second, find the greatest common factor of
Factors of
Factors of
Greatest common factor of
Hence, the greatest common factor of the two algebraic expressions
This is the greatest common factor.
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