Posted by ted on Thursday, July 5, 2012 at 10:47pm.
how do you factor X^3+X^29X9
pls help. I don't know what to do

math  Reiny, Thursday, July 5, 2012 at 11:02pm
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, Friday, July 6, 2012 at 10:01am
or, noting the "9" :)
(x1)(x3)(x+3)
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