How do you find the domain in interval notation for #f(x)=(x^2+2x)/(x+1) #? Algebra Expressions, Equations, and Functions Domain and Range of a Function 1 Answer MeneerNask Jun 18, 2015 The only "forbidden" value is #x!=-1# as this would make the numerator #=0# Explanation: #x# may have any other value. Answer link Related questions How do you determine if (-1, 4), (2, 8), (-1, 5) is a function? What is the domain for #f(x)=2x-4#? What is the domain and range for (3,1), (1,-4), and (2, 8)? What is the domain and range of a linear function? Is domain the independent or dependent variable? How do you find the domain and range of a function in interval notation? How do you find domain and range of a rational function? How do you find domain and range of a quadratic function? How do you determine the domain and range of a function? What is Domain and Range of a Function? See all questions in Domain and Range of a Function Impact of this question 1107 views around the world You can reuse this answer Creative Commons License