Polynomials, Cubic Equations and Partial Fractions - Forming Polynomials from Roots and Factors

Polynomials, Cubic Equations and Partial Fractions - Forming Polynomials from Roots and Factors

TGM Original Questions

Suppose \(\mathrm P(x) = ax^4 + bx^3 + cx^2 + dx + e\) satisfies \(\mathrm P(1) = 1, \mathrm P(2) = 2, \mathrm P(3) = 3, \mathrm P(4) = 4\), it is also given \(\mathrm P(5) = -19\).
Find \(\mathrm P(6)\).

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Answer:\(-114\).

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