The given expression is undefined for the values -1,3 and 0.
What is an expression?
Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
The expression is [tex]\dfrac{x-1}{x^2-2x-3}+\dfrac{5}{2x^2+2x}[/tex].
The expression is not defined as points -1,3 and 0 check all the points.
At x = - 1
[tex]E=\dfrac{-1-1}{(-1)^2-2(-1)-3}+\dfrac{5}{2(-1)^2+2(-1)}\\E=\dfrac{-2}{0}+\dfrac{5}{0}[/tex]
The expression is not defined. Similarly, you can check for points 3 and 0 the expression is not defined.
Therefore, the given expression is undefined for the values -1,3 and 0.
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