更新1:
Find p if x^3+px^2-11x-10 is exactly divisible by (x+2).
maths!
回答 (1)
2008-04-20 4:55 am
✔ 最佳答案
Let f(x) = x3+ px2 – 11x – 10 By factor theorem, f(-2)= 0
i.e. (-2)3+ p(-2)2 – 11(-2) – 10 = 0
-8 + 4p + 22 – 10 = 0
p = -1
參考: Myself~~~
收錄日期: 2021-04-23 20:34:44
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