Algebra Textbooks Boundless Algebra Polynomials and Rational Functions Zeroes of Polynomial Functions
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Finding Zeros of Factored Polynomials

Cubic function

Cubic function

Graph of the cubic function $f(x) = x^3 + 2x^2 - 5x - 6 = (x+3)(x+1)(x-2).$ We see that its roots equal the negative second coefficients of its first degree factors.

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    "Original figure by Yasmine Baestaens. Licensed CC BY-SA 4.0."
    Yasmine Baestaens CC BY-SA 3.0.

Related Terms

  • zero