Chapter 2 What is polynomial ? "An expression that contains different power of same variable in algrebaic form " . Example : P(x) = 2x + 5 , P(y) = y 2 + 5y + 6 What is the Degree Of polynomial ? " Degree of polynomial is the highest power of variable in given polynomial. " For Example : P(x) = 2x + 5 has one as the highest power of x , so degree of polynomial is 1 similarly P(y) = y 2 + 5y + 6 is 2 as the highest power of y , degree polynomial. Linear Polynomial : Polynomial having degree '1' Quadratic Polynomial : Polynomial having degree '2' Cubic Polynomial : Polynomial having degree '3' Zeroes of a polynomial : A real number K is said to be zero of polynomial , If P(K) = 0 Example : P(x) = x + 5 For x = -5 ⇒ P(-5) = 0 So , -5 is the zero of the polynomial. Geometrical meaning Of zeroes : If we plot or draw any polynomial on x-y plane, and the curve cuts the x-axis at ...