Question

find the derivative x^3-x^2/28+8x+3

Answer 1

http://www.wolframalpha.com/input/?i=derivative+x%5E3-x%5E2%2F28%2B8x%2B3

Answer 2

\[\frac{x^3 - x^2}{28 + 8x + 3}\]
??

Answer 3

thats the final answer?

Answer 4

No, I'm asking if that is what you mean

Answer 5

mine is correct

Answer 6

Please do not simply post wolfram links as answers only. It's important to verify that the OP has indeed written the equation correctly (with parenthesis and such in the appropriate places)

Answer 7

Secondly, without any meaningful dialogue, wolfram is not likely to help the OP.

Answer 8

\[x ^{3}-(x ^{2}/28)+8x+3\]

Answer 9

What, in particular is stumping you. (Here, x^2 / 28 is the same as (1/28)x)

Answer 10

sorry: (1/28)x^2

Answer 11

the question is @qpHalcy0n is it "help" the "OP" is really asking for?

Answer 12

Which is why I'm not going to give any free hand-outs ;]

Answer 13

i just have been working on this problem for awhile and can't seem to come up with the right answer and i dont know why

Answer 14

Ok, what ARE you coming up with, then?

Answer 15

y=3x^2-(x/14)+8

Answer 16

Well, that's the correct solution. So, where's the problem?

Answer 17

good question...its for an online assignment and wont be accepted as correct

Answer 18

I detest online math assignments. Presuming you wrote it entirely correctly, then that is the correct solution. It MAY want you to say (1/14)x for that term.

Answer 19

so then how should it look?

Answer 20

The way you posted it is completely valid:
\[3x^2 - \frac{1}{14}x + 8\]
or
\[3x^2 - \frac{x}{14} + 8\]
Are both valid.

Answer 21

the first one is correct thanks

Answer 22

Wow, that's retarded. Exactly why I hate online math assignments ;]

Answer 23

exactly and thats no the first time its happened either

Answer 24

not*

Answer 25

I believe it. Tricking good work into thinking you're wrong.

Answer 26

\[\frac{ d }{ dx } \left( \frac{ x^3 - x^2 }{ 28+8x+3 }\right)\] you mean this one ?

Answer 27

No. We got it.