The greatest common factor of this can be solved by looking at the individual parts and splitting it up.
First, we have 28 and 7. Well, thats an easy one. 7 goes into 28 4 times so we are now left with 4 and 1.
We can also write the rest of this like this 4(x*x*y) - 1(x*y*y*y*y*y)
Now, what values are in both equations. We have one x and one y that can be taken out of both.
We end up with 7xy(4x-7y^4)
Megan will count more because there are 10 ones in 10, but there are only 4 fives in 20.
2430
2*9 = 19
18*3 = 54
54*45 = 2430
Answer:
-13
Step-by-step explanation:
