Question

if x power 140 + 2 x power 151 + K is divisible by X + 1 then the value of k is

Answer 1

When f(x) is divisible by x +1, then when you substitute x = -1, the remainder should be zero

so, (-1)^140 + 2 (-1)^151 + k = 0

1 - 2 + k = 0

k =1

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