2 years ago

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

Mathematics

2 answers:

Roman55 [17]2 years ago

6 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)

a_sh-v [17]2 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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