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#1 2007-12-03 06:42:23

tony123
Member
Registered: 2007-08-03
Posts: 229

easy2

find the roots

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#2 2007-12-03 06:46:30

johnathon2
Real Member
Registered: 2007-09-28
Posts: 15

Re: easy2

how all it is is a bunch of  scrible lines how do i get to the problem


great things come from great minds

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#3 2007-12-03 06:47:37

Ricky
Moderator
Registered: 2005-12-04
Posts: 3,791

Re: easy2

Tony, find a formula for sum from i = 1 to n of 2i.  Then simply calculate the constant, and use the quadratic equation.


"In the real world, this would be a problem.  But in mathematics, we can just define a place where this problem doesn't exist.  So we'll go ahead and do that now..."

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#4 2007-12-03 07:49:12

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: easy2

No quadratic formula needed. This is a very elegant problem, and it turns out to factorise very easily.


Why did the vector cross the road?
It wanted to be normal.

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#5 2007-12-03 07:55:04

Daniel123
Member
Registered: 2007-05-23
Posts: 663

Re: easy2

I get x = 1002 or - 1001.. am I right?

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