4(7+3)
Step-by-step explanation:
GCF is Greatest Common Factor
One Common Factor of 28 and 12 is 2 to give 14 and 6
There is an additional common factor between 14 and 6 (which is 2) to give 7 and 3
There is no common factor between 7 and 3
To get the Greatest Common Factor, we multiply the derived common factors 2 and 2 above
2 * 2 = 4
Therefore the correct choice is
4(7+3)
Learn More:
For more on GCF check out;
https://brainly.com/question/13432648
https://brainly.com/question/9703976
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