on your last two lines ...
x^2 - 1
x^2 + x
-x - 1
now ... x+1 will go into -x-1 how many times?
Hey guys.. having a problem with this.. I feel like the step I am missing is pretty basic, so you should be able to spot it quickly.. I am having a problem with my long division.
Here it is in paint:
Polynomial.jpg picture by AKelsoY - Photobucket
I got it..
I am having another problem though..
I cannot factor (2x^2 - 1)??? I have tried many combinations.. I have been trying this for 20 minutes, so its a bit frustrating
I hope its not something as easy as leaving the two in front of the bracket. This is for a question where I have to solve the equation. How would having a 2 in front of the bracket affect my zero?..
The question is 'Solve 2x^3+6x^2-x-3= 0'
So I have (x+3)(2x^2-1)
Now what? =(