Question

Simplify, step by step please: [(1/(x+h)^3) - (1/x^3)] / 15h

Answer 1

this is horrid...

Answer 2

Agreed.

Answer 3

are you talking about my question domian and range

Answer 4

you have not given a function there prodgers

Answer 5

the domain andrange of f (-2) of f(1)

Answer 6

for this one you need to make a common denominator for x^3 and (x+h)^3

Answer 7

so what would be the answer I am so confused with this mess. I have not taken this kind of mathe in 20 yrs

Answer 8

\[(x^3 - (x+h)^3 )/(x^3 * (x+h)^3)\]

Answer 9

prodgers2, go back to your question and look at what I typed....

Answer 10

so is that the range or the donmain

Answer 11

by the way is this for a limit?

Answer 12

Nope, no limit

Answer 13

and the above is still divided by 15h
(x+h)^3=x^3+3x^2h+3xh^3+h^3

Answer 14

so the x^3 will cancel

Answer 15

and the h too

Answer 16

\[(3x^2+3xh+h^2)/(15(x^3 * (x+h)^3)\]

Answer 17

oh no, there is a minus sign in front of this

Answer 18

yes and it is asking to write the answer in interval notation

Answer 19

and I dont see how you can simplify it further

Answer 20

\[[(1/(x+h)^3) - (1/x^3)] / 15h = 0 \] ???

Answer 21

Yes

Answer 22

akiroso is that the range or domain?

Answer 23

prodgers2, it's neither, this is not your problem.

Answer 24

okkie dookie

Answer 25

THANKS ANDRAS!!! XD