Question

Simplify the rational expression. State any restrictions on the variable.

Answer 1

All the equal signs shown above really look like this

Answer 2

i know that the answer is NOT C

Answer 3

Can you factor the numerator and denominator expressions from the original problem? (-k^2 - k - 2) / (k^2 - 4k - 5)

Answer 4

no

Answer 5

On the bottom, you can factor k^2 - 4k - 5 as follows:

k^2 - 4k - 5 = (k - 5)(k + 1)

Answer 6

ok

Answer 7

I'm not sure about the numerator... unless there's a typo, it doesn't factor easily. Typically, you factor the top and the bottom, and then cancel out a common term like (k + 1), leaving the simplified expression.