Question

Find the greatest common factor of 15x 2 y 3 and -20x 3 yz.

Answer 1

Multiply the GCF of the numerical part 3 and the GCF of the variable part x^2y to get 
3x^2y. 

Answer 2

Answer:

$5x^{2} y$

Step-by-step explanation:

A polynomial has a common factor when the same quantity, whether number or letter, is found in all terms of the polynomial.

We can express the terms as follows, and find their common factor.

$15x^{2} y^{3}   =  5*5*5*x*x*y*y*ÿ$

$-20x^{3} yz = -5*5*5*5*x*x*x*y*z$

In this way, you can find the elements common to both terms

$5x^{2} y(3y^{2} )(-4xz)$