Use the Rational Roots Test to Find All Possible Roots f(x)=x^4-4x^3+9x^2+5x+14

$f (x) = x^{4} - 4 x^{3} + 9 x^{2} + 5 x + 14$

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.

$p = \pm 1, \pm 2, \pm 7, \pm 14$

$q = \pm 1$

Step 2

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

$\pm 1, \pm 2, \pm 7, \pm 14$

Use the Rational Roots Test to Find All Possible Roots f(x)=x^4-4x^3+9x^2+5x+14

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