Question

If (x-a) is a factor of p(x) then P(a)

Answer 1

Step-by-step explanation:

The property: "If x - a is a factor of polynomial P(x), then a is a factor of the constant term of the polynomial."

There are 2 proofs that I've seen so far that prove this theorem. The first proof I understand and makes complete sense to me. In my view, I think proof 1 is easier to understand.

Proof 1:enter image description here

Proof 2:

enter image description here

The second proof is the one I don't understand. More specifically, the part that I don't understand is how:

enter image description here

I hope it helps you

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