Question

factor the expression using the gcf. the expression 21m - 49n factored using the gcf is

Explanation:

Step1: Find GCF of 21 and 49

Factors of 21: \(1, 3, 7, 21\)
Factors of 49: \(1, 7, 49\)
GCF is \(7\).

Step2: Factor out GCF from expression

\(21m - 49n = 7(3m) - 7(7n) = 7(3m - 7n)\)

Answer:

\(7(3m - 7n)\)