Algebra 1, 9th grade
posted by Kenya on .
48x^2y + 20xz + 12xy + 5z
xy  3x – 8y + 24
are these Prime expressions or not?

Each expression has two factors.

i do not understand?

prime expressions cannot have factors. The prime number 13 has no factors except itself. 5z has two factors, 5, and z.