Sympathtic division of poly.
Q: -x^3+2x^2+2x-1 is divided by 2x-1, wt the quotient is?
我用sympathtic division計,計到-x^2+3/2x+11/4, remainder: 3/8
A: -1/2x^2+3/4x+11/8, remainder: 3/8
- 8 年前最愛解答
I think it is synthetic division, cause sympathetic division is biology stuff...
First you got the answer -x^2+3/2x+11/4
However you need to further divide them by 2
That is -1/2x^2+3/4x+11/8
e.g. 4x^2 - 4x + 1
Using synthetic division, the divisor is 2x-1, you will first get 4x-2
However as the divisor is 2x-1, you need to further divide them by 2
That is 2x-1
If the divisor is 3x-1, then you should divide them by 3
2012-05-22 21:30:17 補充：
Loot at this