1) , difference of two cubes.
2) If you factorize (difference of two squares) the two first terms, you get . Can you see the common factor ?
Now I have no time for the other ones, sorry. I did 40% of the job though !
Can i get some help these are the last 5 problems that im stuck with. -_-
(COMPLETED)1) (X-Y)^3 +27
(COMPLETED)3) 3x^(-3/2) - 12x^(1/2)
4) x^(1/2) (x-4)^(-1/2) +3x^(-1/2) (x-4)^(-3/2)
(COMPLETED)5) x^(2n+2) +x^(n+2)-56x^2
for 3 im think its (3x^-3/2)(1-4x^2) but yeah im not sure. but everything else im clueless at right now. thxs for hte help!
thxs earboth i just noticed that i didnt factor it all the way out -_- it was like 12ish i think when i was doing this.. -_-
also for that 1st problem i was getting
((x-y)-3)(x^2-2xy+y^2+3x-3y+9) but it looks wrong. is it?
and for 2 i actually did factor out to that
but didnt know where to go from thier. i thought it would be somthing like
(x-a)((1+1)(1-1))-1 but i dont think its that.