Find K if x-1 is a factor of 4x^3+3x^2-4x+k
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Answered by
0
Ans if x-1 is the factor then ,
x-1=0
x =1
you can easily put x = 1
then you can simply find k
Answered by
8
P(x) =4x^3+3x^2-4x+k
x-1=0 x=1
P(1)=4(1)^3+3(1)^2-4(1)+k
P(1)=4(1)+3(1)-4+k
P(1)=4+3-4+k
P(1)=3+k
3+k=0
K=-3
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