Hi,
If are the roots of , find the value of
Thank you in advanced
Hello !
I think I figured it out...
Maybe there is a quicker way, but I have not a lof of time.
Remember the sum of the roots & the product of the roots :
From (1), we know that .
Similarly, .
Substituting in N :
Gathering it in a unique fraction :
Completing the square above :
But and .
This simplifies into :