Binomial is an algebraic expression containing two unlike terms.
[0.5 Marks]
Therefore, out of the given expressions, 5a+2c and 2m+n2 are binomials.
[1 Mark]
Whereas, x+xz−7 is a trinomial with three unlike terms, and x−xy+y2−6 is a multinomial.
[0.5 Marks]