Posted by **Kenya** on Tuesday, August 4, 2009 at 6:37pm.

48x^2y + 20xz + 12xy + 5z

xy - 3x – 8y + 24

are these Prime expressions or not?

- Algebra 1, 9th grade -
**MathMate**, Tuesday, August 4, 2009 at 7:25pm
Each expression has two factors.

- Algebra 1, 9th grade -
**Kenya**, Tuesday, August 4, 2009 at 7:32pm
i do not understand?

- Algebra 1, 9th grade -
**bobpursley**, Tuesday, August 4, 2009 at 8:02pm
prime expressions cannot have factors. The prime number 13 has no factors except itself. 5z has two factors, 5, and z.

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