CPM Homework Help : CCA2 Problem 10-174

After graphing $y = 12x^3 + 55x^2 - 27x - 10$ on a graphing calculator, you can easily see that one $x$ -intercept is $(-5, 0)$ . Use this information to find all of the $x$ -intercepts. .

Hint:

If $(-5, 0)$ is an intercept, then $(x + 5)$ is a factor. Divide the given polynomial by $(x + 5)$ , and then use the Quadratic Formula or factor to find the other intercepts.

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