Let p(x)=x3+x2−x−1. Mateo claims that the zeros of polynomial p(x) are 1 and −1. His reasoning is that p(x) can be factored as (x−1)2(x+1) and setting each factor equal to 0 results in x=1 and x=−1. Which of these statements are true regarding the claim and reasoning? Select TWO statements that apply.