Question

Evaluate and simplify

Answer 1

`(-3)/(-26)`

Explanation:

`(-x-8)/(x^(2)-4x-21)` is what you are looking for.

So with x = -5, it would look like this

`(-(-5)-8)/(-5^(2)-(-5)4-21)`

Simple math now.

-(-5) is 5

`-5^(2) = -25`

-5 * -4 = 20.

So it should be
`(5-8)/(-25+20-21)`

5-8=-3

-25+20-21 = -26

So the answer is
`(-3)/(-26)`