Examine the steps shown for testing whether or not x = 1 is a zero for the function f(x) = x^3 -3x +2. Identify the first line in which an error occurred.
{ There's like, an L with a long bottom line that holds the numbers, lines one and two are above the bottom line of it. Line one has a one on the outside of the top line, then the rest of the numbers are on the other side: 1, 0, -3, 2.
Line 2 has nothing on the outside, but on the inside there is an arrow pointing down which i'm assuming is taking the 1 from line 1 and putting it on the answer line. The numbers on line 2 are 1, 2, and -1. line 3, under the lower line of the "L", has these numbers: 1, 1, -1, and then there's a little L that is holding a 1. I think I did a bad job explaining but anyone who knows how to answer this question will hopefully know what I'm talking about. }
A. line 1
B. line 2
C. line 3
D. there are no errors
I think it might be D? but I have no clue
2 answers
1x1=1
Not 1x1=2
Hope this helped :)