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CBSE Class 9 Answered

find the value of k if x minus 1 is a factor of 4 x cube + 3 x square - 4 x + k
Asked by solankipushkar | 21 Oct, 2020, 10:09: PM
Expert Answer
As (x-1) is a factor of
4 x cubed plus 3 x squared minus 4 x plus k
T h e r e f o r e space x equals 1 space w i l l space s a t i s f y space t h e space e q u a t i o n space 4 x cubed plus 3 x squared minus 4 x plus k
s o space o n space p u t t i n g space x equals 1 space
4 cross times 1 cubed plus 3 cross times 1 squared minus 4 cross times 1 plus k equals 0
K equals negative 3
Answered by Utkarsh Lokhande | 22 Oct, 2020, 07:16: AM
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