L-2 POLYNOMIAL
Class IX Math Notes for Polynomials • An expression p(x) = a 0 x n + a 1 x n–1 + a 2 x n–2 + ... an is a polynomial Where a 0 , a 1 , .......... an are real numbers and n is non-negative integer. • Degree of a polynomial is the greatest exponent of the variable in the polynomial. • Constant polynomial is a polynomial of degree zero. The constant plynomial f(x) = 0 is called zero polynomial. • Degree of zero polynomial is not defined. • A polynomial of degree one is called a linear polynomil e.g. ax + b, where a ≠ 0. • A polynomial of degree two is called a quadratic polynomial e.g. ax 2 + bx + c where a ≠ 0. • A polynomial of degree 2 is called a cubic polynomial e.g. px 3 + qx 2 + rx + s, p ≠ 0. • A polynomial of degree 4 is called a biquadratic polynomial e.g. px 4 + qx 3 + rx 2 +...