How do you do greatest common factors with exponents?

Answer 1

Let's try one.

30x2y3z4 + 42x4y5z2

Do the numbers first.

Factor them.

2 x 3 x 5 = 30

2 x 3 x 7 = 42

Select the common factors.

2 x 3 = 6

For the variables, select the lowest exponent.

The GCF of the above expression is 6x2y3z2

Answer 2

Yes. The GCF of 2x2 and 4x3 is 2x2

Answer 3

Yes.