Consider cubic polynomial x + 2x + 3x + 4. What is sum of all roots. – InterviewSolution

1.

Consider cubic polynomial x + 2x + 3x + 4. What is sum of all roots.

Answer»

For a cubic polynomial, sum of roots = -(coefficent of x²/coefficient of x³) = -2/1 = -2

=-2/1=-2

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