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9 May, 20:11

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

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Answers (2)
  1. 9 May, 20:21
    0
    As 7 is a factor of both 21 and 49, you can take out 7 from both numbers.

    7 (3m-7n)
  2. 9 May, 20:36
    0
    Answer: 7 (3m - 7n)

    Step-by-step explanation:

    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 and 7n

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