Use the Rational Roots Test to Find All Possible Roots f(x)=-3x^4+7x^3+3x^2-9x-1

$f (x) = - 3 x^{4} + 7 x^{3} + 3 x^{2} - 9 x - 1$

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.

$p = \pm 1$

$q = \pm 1, \pm 3$

Step 2

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

$\pm 1, \pm \frac{1}{3}$

Use the Rational Roots Test to Find All Possible Roots f(x)=-3x^4+7x^3+3x^2-9x-1

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