SOLUTION: what are rational expressions? Why must we always be mindful of the final value of the denominator in a rational expression? For example, consider the rational expression 3x/(x2 �

Question 356270: what are rational expressions? Why must we always be mindful of the final value of the denominator in a rational expression? For example, consider the rational expression 3x/(x2 � 16). What values in the denominator must we be mindful of?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Rational functions are ratios of polynomials like rational numbers are ratios of integers.
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Value that make the denominator equal zero, since division by zero is undefined.

What two values solve this equation?
Those are the values to be mindful of.

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