Factor the GCF out of the given expression.
-$7 a - 42$
A) $7 ( a + 6 )$
B) $6 ( a - 7 )$
C) $7 ( a - 42 )$
D) $7 ( a - 6 )$

Question

Quizplus · Accepted Answer

The greatest common factor (GCF) of 7a and 42 is 7. Therefore, we can factor out a 7 from both terms:

$7a-42 = 7(a-6)$

Option D is the only choice that matches this factorization. Option A is incorrect because the signs are different (positive and negative). Option B is incorrect because 7 is not a factor of 6. Option C is incorrect because it does not have the factor (a-6).

Factor the GCF Out of the Given Expression 7a−427 a - 427a−42

Factor the GCF Out of the Given Expression $7 a - 42$