Question

find the value of k if x = 2 k is a factor of x cube + k x square - 2 X + X + 5​

Answer 1

Answer:

putting the value of x then equation become 8 I cube plus ksquare plus 2k plus 5 =0 then taking k as a common then equation become 8 I square plus k plus 7 then solving by factorization method then our answer arek=7/8, k=-1