What is the GCF of
1.) 14b^2 - 35b^2
2.) 18x^3y^2 + 42x^2y^3
3.) 12x^2 + 16y^2
4.) 3x^2 - 9 you + 12
5.) 45x^3 - 60xy^2
6.) 36x^2 + 18x^3 - 6 + 12x^4
![What is the GCF of 1 14b2 35b2 2 18x3y2 42x2y3 3 12x2 16y2 4 3x2 9 you 12 5 45x3 60xy2 6 36x2 18x3 6 12x4 class=](https://us-static.z-dn.net/files/da1/37aa1432617851607953d6d86677713e.jpg)