How to solve or factorize this equation?

help please

Printable View

- March 16th 2008, 06:49 AMzxeSolve x^4 - x^3 + 8x - 8 = 0, help pls
How to solve or factorize this equation?

help please - March 16th 2008, 06:55 AMMoo
Hello,

You can observe that the sum of the coefficients is 0. So 1 is solution. This means that you can factorise by (x-1).

So

Where Q(x) is a polynom of degree 3 -> Q(x)=ax^3 + bx² + cx + d, with a,b,c,d to determine by developping (x-1)Q(x). - March 16th 2008, 06:55 AMwingless

--->

--->

- March 16th 2008, 08:09 AMJhevon
- March 16th 2008, 12:28 PMtopsquark