Question

Use the cubic function f(x)=x^3+x^2-3x+1 to complete the problems. What are the possible roots of the function? Test possibilities synthetically to determine which one(s) are valid

Answer 1

try to factor out (x-1), (x+1)

Answer 2

1| 1 1 -3 1
0 1 2 -1
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1 2 -1 0 <- zero means its good

Answer 3

x = 1 is a root