Find the product of all x such that the expression \(\frac{x^2+2x+1}{x^2+2x-3}\) is undefined.


I am not sure how to solve this without using the tedious process of trial and error. Thanks.

Guest Mar 27, 2018

The expression can be written as \(\frac{(x+1)^2}{(x-1)(x+3)}\)    which is undefined when the denominator is zero.


This occurs when x = 1 and x = -3, so the product is -3.


Alan  Mar 28, 2018

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