The sum or difference of terms which
have variables raised to
positive integer powers and
which have coefficients that may be real or complex.
The following are all polynomials: 5x3 – 2x2 +
x – 13, x2y3 +
xy, and (1 + i)a2 + ib2.
Note: Even though the prefix poly- means many,
we use the word polynomial to refer to polynomials with 1 term
2 terms (binomials), 3 terms, (trinomials), etc.
Standard form for a polynomial in one variable:
anxn + an–1xn–1 + ··· + a2x2 + a1x + a0