Question

Find the greatest common factor of 20x^3y^2 and 30x^2z.
Select one:
a. 10xyz
b. 10x
c. 10x^2
d. x^2

Answer 1

What values are in both expressions?

Answer 2

You can see that 20 and 30 both are a multiple of 10 so that is 1 of your common factors. Now which other factors of X , Y, and Z are in both?

Answer 3

Hint: Only 1 more common factor.

Answer 4

20

Answer 5

No you already took a multiple of 10.

Answer 6

if we take out that multiple of 10 we have: