If a polynomial p(x) is divided by x−a then remainder is
p(x)=(x-a)q(x)+r(x) where q(x) is the quotient when f(x) is divided by x-a and r(x) The Remainder Theorem says that we can restate the polynomial in terms of the divisor, and then evaluate the polynomial x=a hence putting it we get p(a)=0*q(a)+r(a) p(a)=r(a) hence the remainder is p(a) |