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Find all roots of the polynomial x4 - 6x + 3x + 24x - 28 given x = -2 is a root.

1 Answer

3 votes

Answer:

(-78)

Explanation:


4x - 6x + 3x + 24x - 28 \\ 4( - 2) - 6( - 2) + 3( - 2) + 24 (- 2) - 28 \\ - 8 + 12 - 6 - 48 - 28 \\ (- 78) \\

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