Home > INT3 > Chapter 9 > Lesson 9.2.2 > Problem9-115

9-115.

Use your answers to the previous problem to complete each part below. Homework Help ✎

1. Factor $x^{3} – 5x^{2} + 11x – 15$.

There are $2$ factors. $\left(x − 3\right)$ is one factor. Use long division to find the other factor.

1. Determine the roots of $P\left(x\right) = x^{3} – 5x^{2} + 11x – 15$.

Once the polynomial is factored, use the Zero Product Property to solve.

This is a $3$rd degree polynomial function, so find $3$ answers. One of the answers is $x = 1 + 2i$.