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

The polynomial remainder theorem says when we divide polynomial f(x) by x-a we'll get remainder f(a).







Since f(8)=0 that means x-8 has a remainder zero when divided by f(x). In other words, it's a factor of f(x).

Answer B
 

Dis the correct answer