If x-a is a factor of f(x), which of the following must be a factor of f(2x)?
A. x-2a
B. x+2a
C. 2x-a
D. 2x+a
Polynomial
2012-01-12 5:44 am
回答 (2)
2012-01-12 6:21 am
✔ 最佳答案
Let f(x) = Q(x)*(x - a), where Q(x) is a polynomial.f(2x) = Q(2x)*(2x - a)
Hence 2x - a is a factor of f(x).
Ans: C
參考: Knowledge is power.
2012-01-12 5:48 am
C???????????????
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120111000051KK00833