math
posted by
ted on
.
how do you factor X^3+X^29X9
pls help. I don't know what to do

math 
Reiny,
looks like grouping might be the simplest way ...
X^3+X^29X9
= x^2(x+1)  9(x+1)
= (x+1)(x^29) and now I see a difference of squares
= (x+1)(x+1)(x1)
or
= (x1)(x+1)^2

math 
Steve,
or, noting the "9" :)
(x1)(x3)(x+3)