SOLUTION: x+5 + 1/x+1 = 6 then find the value of (x+1)^3 + 1/(x+1)^3

Question 1087960: x+5 + 1/x+1 = 6 then find the value of (x+1)^3 + 1/(x+1)^3
Answer by ikleyn(52858) (Show Source): You can put this solution on YOUR website!
.

If    = 6 then 

     = 6 - 4 = 2,

and the equivalent question is:


If  = 2, then find the value of .


I solved such problems MANY TIMES in this forum, and just tired of it.


See the lesson

    - HOW TO evaluate expressions involving  ,  ,     and   

in this site, and find full solution there (Problem 2), as well as many other relevant hings.

Closely related to it are the lessons
    - Advanced lesson on evaluating expressions
    - HOW TO evaluate functions of roots of a square equation
    - HOW TO evaluate functions of roots of a cubic and quartic equation
    - Advanced problems on Vieta's formulas
in this site.

Also, you have this free of charge online textbook in ALGEBRA-I in this site
    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.

The referred lessons are the part of this online textbook under the topic "Evaluation, substitution".

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