How would I factorize

x^3+2x^2-9x-18

and then solve

f(x)=0?

Thanks a lot.:)

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- Nov 21st 2006, 04:38 AMYppolitiaBinomial function
How would I factorize

x^3+2x^2-9x-18

and then solve

f(x)=0?

Thanks a lot.:) - Nov 21st 2006, 05:02 AMtopsquark
- Nov 21st 2006, 05:44 AMputnam120
also if you do not know how to factor that well you could try and find one root, with the rational root theorem.

lets say that u have now since this has a root lets call it we then have

where . as you notice the degree of Q is one less than that of f.