SOLUTION: {{{w^3=1}}}, Find the exact values of {{{(1+2w+3w^2)}}} & {{{(1+3w+2w^2)}}}, given that these are roots of the eq'n {{{x^2 + 3x +3=0}. I did the Q, however I am just stuck on say

Algebra.Com
Question 1152853: , Find the exact values of & , given that these are roots of the eq'n or ?
Thank you so much

Answer by Edwin McCravy(20056)   (Show Source): You can put this solution on YOUR website!
No complex imaginary number can be said to be "larger" or "smaller" than any
other complex numbers.  Only real numbers can be said to be larger or smaller
than other real numbers.  

We should do all the possibilities.

The problem from the very beginning:

Since 
 

and



are roots of the equation 



their sum is equal to the coefficient of x with the opposite sign:

So:



or






[We can check that their product will be the constant term 3, but
we don't need that.

(1) When we substitute 



into 

 

we get



-----

(2)  When we substitute 



into 

 

we get



------

(3) When we substitute 



into 

 

we get the value



------

(4) When we substitute 



into 

 

we get the value



---

So, the exact values of both   and , 
given that

 

and



are roots of the equation



Note that for , the sign of the imaginary part is
OPPOSITE the sign of the imaginary part of what is substituted, and
that for , the sign of the imaginary part is the 
SAME AS the sign of the imaginary part of what is substituted.

Edwin

RELATED QUESTIONS

what are the values of w,x,y, and z in these equations? 1. w + x + y + z = 2 2. 2w -... (answered by ankor@dixie-net.com)
find all values of w that satisfy the equation if there is more than one solution,... (answered by jim_thompson5910)
(3w^2+2w+3)+(w^2+w+4)+(7w^2+3w+1) (answered by solver91311)
The Perimeter of a Rectangle 108m The length is 3m more than twice the width. Find the... (answered by Alan3354)
The length of a rectangle is 50ft. The perimeter of the rectangle is 275ft more than the... (answered by checkley71)
2w+x+5y+z=5 w+x-3y-4z=-1 3w+6x-2y+z=8... (answered by Alan3354)
if the ratio of the roots of the equation x^3+5x^2+px+q=0 are w, 2w, and w+3, find the... (answered by greenestamps)
3(w+1)-5=2(W-1)+w What's the correct answer to this problem? (a)-2 (b)all real Numbers... (answered by LinnW)
The Length of a rectangle is 4 feet less than 3 times its width. The perimeter of the... (answered by ikleyn)