Hi Merit Nation Experts ,I have asked some regarding my doubts so please can you answer them because ill be having my 2nd term examination this march so please answer my question as soon as possible !!here are the question i asked so please answer as soon as possible!  IS   7 x 2 y  + 12 x 2 y  WHEN TAKEN TO LIKE TERMS CHANGED TO  (7 + 12) x 2 y Could you please tell me what are  monomials, binomials and trinomials. And what is polynomials? Thanks!Regards Chris

When 7x2 y + 12x2 y when taken to like terms changed to (7 + 12) x2 y

Monomials, binomials, trinomials and polynomials are defined as:

Expression containing only one term is called a monomial.
Example: 2x, –3x2, 2xy, etc.

Expression containing only two unlike terms is called a binomial
Example: 2x + 3, 3x2 – 2, – 2xy + 3y2, etc.

Expression with three terms, where the terms are unlike, is called a trinomial.
Example: 2x2 –3x + 1, – 2xy + 5y + 6x, etc.

In general, the expression with one or more terms is called a polynomial.