POLQ 3 | Lesson 2 | Practice (Finding Rational Roots)

Finding Rational Roots

Using the rational roots theorem, determine what numbers are potential rational roots of the following polynomials:

1) \(f(x)=x^2+8x+10\)

2) \(f(x)=x^2-64\)

3) \(f(x)=5x^3-2x^2+20x-8\)

For the problems below, find the possible rational roots and then use synthetic division and other factoring strategies to find all the rational roots of the functions.

1) \(f(x)=x^3+x^2-5x+3\)

2) \(f(x)=x^3-13x^2+23x-11\)

Check solutions here.
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Go to Try This (Factors and Zeros of Polynomials)

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