+5265 Simplify. Identify any x values for which the expression is undefined.
-x2+16
---------
-x2-9x-20
Please hurry! This is urgent!
+5265 I'm really cutting a few deadlines close, and it is due to... PROCRASTINATION. the wonderful thing that makes a person do both 30 minutes of work in 8 hours and 8 hours of work in 30 minutes.
+129852 This will be undefined when
-x^2 -9x - 20 = 0 multiply through by -1
x^2 + 9x + 20 = 0 factor
(x + 4) ( x + 5) = 0
Setting both factors to 0 and solving for x we have that the function will be undefined
whenever x = - 4 or x = - 5
+1491 Here's a tip for these types of problems that may prevail later on. Set the denominator eual to zero and try to factor the denominator.
