SOLUTION: Let f(x)= x+4/x^2+4 Find and simplify as much as possible f(2t) I got the answer t+2/t^2+2 Is that correct.

Algebra ->  Equations -> SOLUTION: Let f(x)= x+4/x^2+4 Find and simplify as much as possible f(2t) I got the answer t+2/t^2+2 Is that correct.       Log On


   

Question 1164170: Let f(x)= x+4/x^2+4
Find and simplify as much as possible f(2t)
I got the answer t+2/t^2+2
Is that correct.

Answer by ikleyn(52852) About Me  (Show Source):
You can put this solution on YOUR website!
.

They want you replace x in the formula by " 2t " at each and every appearance of x. 

You will get then   %282t%2B4%29%2F%28%282t%29%5E2%2B4%29 = %282t+%2B+4%29%2F%284t%5E2%2B4%29 = %282%2A%28t%2B2%29%29%2F%284%2A%28t%5E2%2B1%29%29 = %28t%2B2%29%2F%282%2A%28t%5E2%2B1%29%29 = %28t%2B2%29%2F%282t%5E2%2B2%29.        ANSWER