Use the Rational Roots Test to Find All Possible Roots -7x^4-26x^2-x+9=0

$- 7 x^{4} - 26 x^{2} - x + 9 = 0$

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.

$p = \pm 1, \pm 3, \pm 9$

$q = \pm 1, \pm 7$

Step 2

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

$\pm 1, \pm \frac{1}{7}, \pm 3, \pm \frac{3}{7}, \pm 9, \pm \frac{9}{7}$

Use the Rational Roots Test to Find All Possible Roots -7x^4-26x^2-x+9=0

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