Hi, stupid question probably but where does eqn 24 come from!? It doesn't look right. Suppose for example you take p(x) = x^2 - 4, then (24) says p(x) = (1-x/2)(1+x/2), but it doesn't (multiplying out you get 1 - x^2/4, which is not p(x)).

## Eqn 24

Hi, stupid question probably but where does eqn 24 come from!? It doesn't look right. Suppose for example you take p(x) = x^2 - 4, then (24) says p(x) = (1-x/2)(1+x/2), but it doesn't (multiplying out you get 1 - x^2/4, which is not p(x)).