 In algebra, we have lots of different names for different things. Expressions, equations, formulae and identities are all slightly different versions of similar things. Then, within these, we have variables, constants, coefficients and exponents to describe the different parts. We also need to know what the word polynomial means and the different types of polynomials. A polynomial can have constants, variables and coefficients and exponents that are zero or higher. Polinomials can never be divided by a variable. This last one isn't a polynomial because the exponent is a negative. Polinomials can only have positive exponents. So, polynomials is a general name. We can divide this down into monomials, binomials, trinomials and many others. Given that a monocycle has one wheel and a bicycle has two wheels and a tricycle has three wheels, do you think you know the difference between a monomial, binomial and trinomial? I'm sure you guessed it. A monomial has one term, a binomial has two terms and a trinomial has three terms. More than three terms, we just call a polynomial. So, which of these are mono, bi or trinomials or not polynomials at all? Pause the video, work it out, click play when you're ready. Did you get them right? So, you should now know what polynomials are and that they can never be divided by a variable. If you liked the video, give it a thumbs up and don't forget to subscribe, comment below if you have any questions. Why not check out our Fusco app as well? Until next time!