Answer:
undefined
Step-by-step explanation:
the value of the rational expression x/x2-9 when x = –3
Rational expression is [tex]\frac{x}{x^2-9}[/tex]
To find the value of the rational expression at x=-3 , we plug in -3 for x
[tex]\frac{x}{x^2-9}[/tex]
[tex]\frac{-3}{(-3)^2-9}[/tex]
[tex]\frac{-3}{9-9}[/tex]
[tex]\frac{-3}{0}[/tex]
When the denominator becomes 0 then the expression is undefined
