For what value of x is the rational expression below undefined? x+3 x^2-9x+20 possible answers -4 -3 4 -5 3 5 check all the apply.

The expression is undefined for x=4 and x=5.

The expression is undefined for any x that makes the denominator 0. This leads to solving a quadratic equation:

Step-by-step explanation:

Alright, lets get started.

The rational expression is gien as :

For being the function undefined, the denominator must be equal to zero.

factoring

This will give two values of x, which are

x = 5 and x = 4

So,the answer is 4 and 5.   :   Answer

Hope it will help :)

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are