Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2013-04-10 13:28:55


Algebra Help

So I have


x1 - x1/N

now somehow this EQUALS ((N-1)/N)*x1

can someone please explain how/why? thank you

#2 2013-04-10 13:34:22


Re: Algebra Help

I may have done something wrong along the way SO i moved a step back

We have

x - ((1/(x^N-1))*((x^N)/N)

I beg for your time on this, it hopefully isn't too long.

So the two things on the right hand side are multiplied and subtracted from x.

Somehow this is rewritten to equal


please help

#3 2013-04-10 20:01:18

bob bundy
Registered: 2010-06-20
Posts: 8,354

Re: Algebra Help

hi Karimazer1

cancel x^(n-1)

Hope that helps.


ps.  Not very confident about expectation algebra.  Hopefully someone else is.  If you are still waiting for a reply to your other posts in 48 hours, post again and I'll try to help.  eek

Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei


Board footer

Powered by FluxBB