Use the Rational Roots Test to Find All Possible Roots f(x)=x^3+6x^2-72x-77

$f (x) = x^{3} + 6 x^{2} - 72 x - 77$

Step 1

If a polynomial function has integer coefficients, then every rational zero will have the form $\frac{p}{q}$ where $p$ is a factor of the constant and $q$ is a factor of the leading coefficient.

$p = \pm 1, \pm 7, \pm 11, \pm 77$

$q = \pm 1$

Step 2

Find every combination of $\pm \frac{p}{q}$ . These are the possible roots of the polynomial function.

$\pm 1, \pm 7, \pm 11, \pm 77$

Use the Rational Roots Test to Find All Possible Roots f(x)=x^3+6x^2-72x-77

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