Posted by **Courtney** on Thursday, April 15, 2010 at 7:16pm.

Can you see if my answers are correct?

Directions find the GCF: (I did the factor tree for each)

40; 2^3 times 5

128; 2^7

GCF: 2

90; 3^2 times 2 times 5

105; 5 times 3 times 7

180; 3^2 times 2^2 times 5

GCF: 5

3x^3; what is that suppose to be

6x; 2 times 3

12x^2; 2^2 times 3

What is the GCF is it 3x?

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