Question 1040787
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which of the following polynomials has a factor of x-1?
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Those and only those that have the number "1" as their root.


(based on the "Remainder theorem", see the lesson <A HREF=https://www.algebra.com/algebra/homework/Polynomials-and-rational-expressions/Divisibility-of-polynomial-f%28x%29-by-binomial-x-a.lesson>Divisibility of polynomial f(x) by binomial x-a</A> in this site).


<pre>
A) {{{p(x)}}} = {{{x^3+x^2-2x+1}}}

B) {{{q(x)}}} = {{{2x^3-x^2+x-1}}}

c) {{{r(x)}}} = {{{3x^3-x-2}}}         <--- This and only this

D) {{{s(x)}}} = {{{-3x^3+3x+1}}}
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