Posted by Anonymous on Monday, February 13, 2012 at 6:05pm.
Please show us how you think these problems should be solved -- or where you're stuck. Do not post any more problems until you've shown us some effort on these other 10 or so problems.
7(3x^3-1)= 21x^2
7(2x^2-1)= 14x
so would it be 21x^2+14x/x
I don't know how to go further than this
I don't know the foggiest idea what you are doing.
first of all, I think you probably meant
f(x) = (7x^3 + 7x^2)/x , or else the last term would simply be 7x
from my assumption, then
f(x) = 7x^2 + 7x
f'(x) = 14x + 7
I think i see what i am doing wrong thank you very much :)
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