Consider the polynomial p(x), evaluating the polynomial at x = a it gives p(a).
Example; evaluate the following polynomials at x = a
- P(x) = x3-2x2+4x-5 , a=2
- G(x) = x2+2x+3 , a=-1
Solution
- P(2) = 23-2(22)+4(2)-5 2) G(x) = (-1)2+2(-1)+3
= 8-8+8-5 = 1-2+3
=3 =2
