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yours in incomplete. 12x + 36 can be factored further by pulling a gcf out
but I did? here is my problem:
24X^3-36x^2+72X-108 12x2(2X-3)+36(2x-3) (2x-3)(12x2+36) ???? NOt sure what I did wrong Thanks in advance.
you didn't do anything wrong, it's just that there's another step. You have (2x - 3)(12x² + 36) 2x - 3 can't be factored anymore 12x² + 36 can have a gcf of 12 factored out
So I need to factor my answer which I already had factor previously! So it's possible that once you have factor a problem your answer my still need to be factor a bit more. ?
yes, that's fairly often the case
yes.unless you get it in the most simplest form
remember in these cases you got to reduce the equation to the simplest form
would there had been another way to factor from the start or this would of been the only way which and I would just had to do the extra step at the end ?
this is the best possible easy way
but my final answer would not match meaning I have a negative and a positive answer. For some reason I though that would be wrong ?
whats the answer given in your book
The book says the opposite? = 12(2x-3)(x2+3)
thats what you have got
this was my original answer: (2x-3)(12x2+36)
great I just figured it out thanks
would you please take a look at another problem for me?
a^3-3a^2-2a+6 my answer was way off even after changing the - to + and making the - 2a to +(-2a+6)?
answer will be (a^2-2)(a-3)
is it okay
that is the answer but can you explain how?
a^3-3a^2-2a+6 a^3-2a-3a^2+6 a(a^2-2)-3(a^2-2) (a-3)(a^2-2)
did you now understand?
doing the problem myself following your steps....
go on buddy............:)
sorry but I don't understand why you re- arrange the order when doing factoring by grouping>?
I got the same answer but did not re-arrange the problem
rearangement makes it more clear and simple