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sesenic [268]
3 years ago
6

Factor the expression using the GCF. The expression 21m−49n factored using the GCF is...

Mathematics
2 answers:
Roman55 [17]3 years ago
6 0

Answer:  7(3m - 7n)

<u>Step-by-step explanation:</u>

Factor each term then see what value(s) they have in common:

          21m         -          49n

            ∧                        ∧

          3 · 7 · m              7 · 7 · n

Both terms have a 7 in common.  What is left over after removing the 7?

21m: 7(3m)

49n: 7(7n)

GCF: 7           Leftovers: 3m <em>and</em>  7n

Factored form of expression is: 7(3m - 7n)

a_sh-v [17]3 years ago
3 0
As 7 is a factor of both 21 and 49, you can take out 7 from both numbers.

7(3m-7n)
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