b) Find the value of k, if x – 1 is a factor of x3 + x2 − 5x +k .
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If x-1 is a factor of the given polynomial
Then putting x=1 in this polynomial should be zero
So do it
(1)^3+(1)^2-5*1+k=0
1+1-5+k=0
K=3
This is required solution
Then putting x=1 in this polynomial should be zero
So do it
(1)^3+(1)^2-5*1+k=0
1+1-5+k=0
K=3
This is required solution
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