Question

-1 is a zero of a polynomial p(x
p(x) =x6 + kx4 – x3 + 3x.​

Answer 1

Answer:

Hi!!!

p(x) =x6 + kx4 – x3 + 3x.

As -1 is the zero of the polynomial, substitute x=-1 in the equation.

(-1)^6 + k(-1)^4 - (-1)^3 + 3(-1)

1 + k + 1 - 3 = 0

2 + k - 3 = 0

k - 1 = 0

k = 1

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