A rational expression is a fraction in which both the numerator and the denominator are polynomials.
Example:
(3x^2 + 5) / (2x - 4)
In this example, the numerator is the polynomial 3x^2 + 5 and the denominator is the polynomial 2x - 4. This is a rational expression because it is a fraction with polynomials in both the numerator and denominator.
Rational expression wit it example
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