Respuesta :

vdiazvarela

Answer: D. 12h + 21h2

Step-by-step explanation: The answer is D,

because when you devide 12h/3h = 4

and for the other value 21h2/3h=7h

4 + 7h

if you perform the same operation with the rest of answers you will get a minor values if you compare with this results, because of that the answer with the greatest common factor is D.

Answer:

[tex]12h + 21h^2[/tex]

Step-by-step explanation:

A.[tex]18h^2 - 6h[/tex]

Both 18 and 6 are divisible by 6. GCF of h^2 and h is h. So GCF is 6h

B.[tex]3 − 9h[/tex]

3 and 9 are divisible by 3. So GCF is 3

C. [tex]6h^2 − 2h[/tex]

6 and 2 are divisible by 2. GCF is not 3 here

D. [tex]12h + 21h^2[/tex]

Both 12 and 21 are divisible by 3. GCF of h^2 and h is h

So GCF is 3h

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