Question

Factor out the greatest common factor from the expression
12xyz² + 8xyz – 20x²yz

Answer 1

4xyz

Answer 2

What is the highest number that they all can be divided by, it is 4. This kind of reminds me of reducing fractions with a common denominator. Which variables are in each expression, in this case it is xyz. So you can factor out a 4xyz. Your problem should now look like
4xyz(3z+2-5x). If you multiply the 4xyz through you can see why it works

Answer 3

4y(3xz² + 2xz – 5x²z)