Respuesta :
According to the question, the given rational expression can be simplified and as shown below:
Rational expression = [tex]\frac{49-z^{2} }{z+7}[/tex]
To simplify the given rational expression, calculate the factors of the numerator as well as denominator. And later divide it from each other. These expressions are also called as polynomial expressions.
Rational expression = [tex]\frac{(7-z)(7+z)}{z+7} =\frac{(7-z)}{1} =7-z[/tex]
Therefore, final expression of the given equation is [tex]7-z.[/tex]
What is polynomial expression?
Polynomial expression are those equation whose highest degree is two. It is also called as quadratic equation. And it is simplified by performing the factors on the given expressions.
To learn more about the polynomial expression from the given link:
https://brainly.com/question/1280754
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