Determine, if possible, if (x – 8) is a factor of (x3 – 3x2 – 31x – 72). A. Only if x = 2 B. Yes C. No D. Not enough information
to determine
2 answers:
The polynomial remainder theorem says when we divide polynomial f(x) by x-a we'll get remainder f(a).



Since <em>f(8)=0</em> that means <em>x-8</em> has a remainder zero when divided by <em>f(x).</em> In other words, it's a factor of <em>f(x)</em>.
Answer B
I believe the answer is C
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