• “Polynomial” comes from the word ‘Poly’ (Meaning Many) and ‘nomial’ (in this case meaning Term)-so it means many terms.
  • A polynomial is made up of terms that are only added, subtracted or multiplied.
  • A quadratic polynomial in x with real coefficients is of the form ax² + bx + c, where a, b, c are real numbers with a ≠ 0.
  • Degree – The highest exponent of the variable in the polynomial is called the degree of polynomial. Example: 3x3 + 4, here degree = 3.
  • Polynomials of degrees 1, 2 and 3 are called linear, quadratic and cubic polynomial respectively.
  • A polynomial can have terms which have Constants like 3, -20, etc., Variables like x and y and Exponents like 2 in y².
  • These can be combined using addition, subtraction and multiplication but NOT DIVISION.
  • The zeroes of a polynomial p(x) are precisely the x-coordinates of the points, where the graph of y = p(x) intersects the x-axis.