Find any values for which the rationalexpression is underfined.
5x+2/x^2+9x+20
Thanks!!
[ 5x+2 ] / [ x^2+9x+20]
This is only undefined if x^2 + 9x + 20 = 0
So, factoring, we have
(x + 5) ( x + 4) = 0 and setting each factor to 0, the function is undefined when x = -4 or x = -5
