Answers to pre-test
|
| 1. { ± 1 , ±
3 , ± 7 , ± 21 } |
| 2. No. The remainder is -11
when you divide. |
| 3, The equation resulting from
reducing the number of roots in an equation. For example, if
p(x) = 0 is a polynomial equation and f(x) is a polynomial factor
(other than a constant) of p(x), then the equation obtained by dividing p(x) by f(x) is called the depressed equation. |
| 4, 100, because there will be 100 linear
factors |
| 5. - 7 |
| 6. 2x3 - 5x2 + 5x -
1 |
| 7(a) { - 2 , 1
, 3 } |
7(b) { -
, -
,
} |
| 7(c) { -2 , 1 , 2i
, - 2i
} |
