# SOLUTION: Please help me with this problem. Look at the expression 4x-12/x^2-16. If x was replaced with 3, would the expression be considered defined? Why or why not? If x was replaced

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> SOLUTION: Please help me with this problem. Look at the expression 4x-12/x^2-16. If x was replaced with 3, would the expression be considered defined? Why or why not? If x was replaced      Log On

 Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Question 253572: Please help me with this problem. Look at the expression 4x-12/x^2-16. If x was replaced with 3, would the expression be considered defined? Why or why not? If x was replaced with 4, would the expression be considered defined? Why or why not? Is there another value for x that would make this expression undefined?Answer by solver91311(16877)   (Show Source): You can put this solution on YOUR website! The rational expression is defined if the denominator is NOT equal to zero, undefined otherwise. John