CBSE Class 9 Answered
Find
the value of a if (x + a) is a factor of x4 -a2x2
+ 3x -a.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Let f(x) = x4-a2x2+3x-a
(x+a) is a factor of f (x)
f (-a) = 0
(-a)4-a2(-a)2+3(-a)-a = 0
a4-a4-3a-a = 0
-4a = 0
a = 0
Answered by | 04 Jun, 2014, 03:23: PM
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