human
Identify factors of algebraic expressions Tom and Katie are discussing factors

Tom says \( 3 \) is a common factor of \( 6 x \) and \( 9 y \)

Katie says \( x \) is a common factor of \( 6 x \) and \( 9 y \)

Who is correct? Only Katie
gpt
Does not know how to identify common factors from algebraic terms