Find the product of all x such that the expression (x^2 - 4)/(x^2 - 1) is undefined.

Guest Nov 11, 2020

#1**0 **

*Find the product of all x such that the expression (x^2 - 4)/(x^2 - 1) is undefined.*

x^{2} – 4

The expression is ————

x^{2} – 1

When a denominator equals zero, the expression is undefined.

So, in this case, it is undefined at **x = +1**

By the way, the denominator would factor to (x + 1)(x – 1)

Factoring would be helpful in a more complicated expression,

but this one is simple enough it wasn't necessary.

_{.}

Guest Nov 11, 2020