Answer
$5x^2$
Work Step by Step
The $GCF$ of $20,10,$ and $35$ is $5.$
The $GCF$ of $x^3,x^2,$ and $x^3$ is $x^2$.
Hence, the GCF of the given expressions, $
20x^3y; \text{ } 10x^2y^2; \text{ } 35x^3
$ is
\begin{array}{l}\require{cancel}
5x^2
.\end{array}
