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# Roots of a rational function

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Q: Consider the polynomial function
f(x)=4x^4-13x^2+9
a. What is the maximum number of real roots you would expect and why?
b. Find the real roots of the polynomial function. Using factoring by
substitution, or substitution and the quadratic formula to find the real roots

##### Solution Summary

The roots of a rational function is analyzed. Substitution and quadratic formulas are given.

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Q: Consider the polynomial function

f(x)=4x^4-13x^2+9

a. What is the maximum number of real roots you would expect and why?
b. Find the real roots of the polynomial ...

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