For what real values of a is the expression (a+3)/(a^2-4) undefined? List your answers in increasing order separated by commas.

xXxTenTacion
Aug 25, 2018

#1**+3 **

We can factor the denominator first: (a+2)(a-2), and leave the numerator as it is: a+3. Now, think about what undefined means, and see what value of x can fit in.

tertre
Aug 25, 2018