Question
Find the common factor of $x^2 y$ and $-x y^2$.

Answer

We have to factorise both terms,
$
\begin{aligned}
x^2 y & =x \times x \times y \\
\text { and }-x y^2 & =-x \times y \times y=-1 \times x \times y \times y
\end{aligned}
$
Common factor in both terms is $x y$.

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