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Home > INT3 > Chapter 8 > Lesson 8.3.2 > Problem 8-113


The graph of is shown at right.

  1. Use the graph to determine one solution to , then use the Factor Theorem to write a factor of . Read about the Factor Theorem in the Math Notes box in this lesson.

    Where does the graph cross the -axis? What is the associated factor?

  2. Determine all the factors and roots of , including any with complex coefficients.

    Divide the factor from part (a) into to obtain a quadratic factor.
    Then use the Quadratic Formula to find the roots.
    Use the roots write the associated factors.

A curved continuous graph, with arrows at both ends, that rises from the bottom left, to a point in the third quadrant, falls to approximately the point, (0, comma negative 26), then rises, crossing the, x axis, at 2.