Rational+Root

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Today's Lesson is on Rational Roots:

So, what is a Rational Root?

For any polynomial equation, the rational roots (or solutions) must be such that the numerator of the root is a factor of the constant term of the polynomial and the denominator of the root is a factor of the coefficient of the highest degree term of the polynomial.

You are probably asking WHAT in the WORLD does that mean?.. well, let's try an example.