If x140+2x151 +k is divisible by x+1, then the value of k is
Let f (x) = x140 + 2x151 + k
Since, x+1 is a factor of f (x)
So, f (-1) = 0
(-1)140 + 2(-1)151 +k = 0
1 - 2 + k=0
k = 1