The polynomials are an expression involving a sum of powers in one or more variables multiplied by coefficients and constant. Polynomial linear , quadratic etc as per value of n=1, n = 2 etc . We can graph the polynomial for finding solution. Another polynomial is also use for curve as well as st. line. As per highest degree of n . it gives real and complex root.  It trending describes a pattern in the data that is curved or breaks from a straight linear trend.

Polynomial

Polynomial