evaluate g(n-5) if g(x)= x^2-6 / 2x Please help me with this multiple choices.
A. n^2 - 5 / 2n-20
B. n^2-6/2n -5
C. n^2-10n+19 / 2n-10

Question

evaluate g(n-5) if g(x)= x^2-6 / 2x Please help me with this multiple choices.
A. n^2 - 5 / 2n-20
B. n^2-6/2n -5
C. n^2-10n+19 / 2n-10

hero · Answer

@carlos10, rather than close the previous question, you can just bump the question. I would have shown you how to simplify it.

anonymous · Answer

to choose one of the answers!

anonymous · Answer

please!

anonymous · Answer

think of the function like this...

$$g()=()^{2} -\frac{ 6 }{ 2() }$$

so whatever is in the parentheses on the left goes in th parentheses on the right.

$$g(n-5)=(n-5)^{2} -\frac{ 6 }{ 2(n-5) }$$

now just simplify...

hero · Answer

@pgpilot326, I'm afraid you have interpreted the function too literally. It is

$$g(n - 5) = \frac{(n - 5)^2 - 6}{2(n - 5)}$$

Right @carlos10 ?

anonymous · Answer

oh, sorry.  it's difficult to tell when people don't use parentheses at all or don't use them properly.

hero · Answer

I agree. It's too bad that people don't know how to post equations horizontally.

anonymous · Answer

yes it is but can someone teach me how to simplify it?

anonymous · Answer

please.

anonymous · Answer

you got this @Hero ?

anonymous · Answer

to get the right answer.

anonymous · Answer

I want to learn how to simplify it really fast please

hero · Answer

I was ready to help until I figured out someone was taking a test. Then I got discouraged very quickly.

anonymous · Answer

Im done with that, the test is over but now I want to learn how can I simplify it!