Question

Why is a polynomial in one variable x of degree n written in the form: anxn+an-1xn-1+…+a1x+a0

Answer 1

Answer:

A polynomial of degree n (in one variable, with real coefficients) is an expression of the form: anxn + an-1xn-1 + an-2xn-2 + ··· + a2x2 + a1x + a0 where an,an-1,an-2,···a2,a1,a0 are real numbers. ... The degree of a polynomial is the highest power of x whose coefficient is not 0.