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

8 years agothis is horrid...

8 years agoAgreed.

8 years agoare you talking about my question domian and range

8 years agoyou have not given a function there prodgers

8 years agothe domain andrange of f (-2) of f(1)

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

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

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

8 years agoprodgers2, go back to your question and look at what I typed....

8 years agoso is that the range or the donmain

8 years agoby the way is this for a limit?

8 years agoNope, no limit

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

8 years agoso the x^3 will cancel

8 years agoand the h too

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

8 years agooh no, there is a minus sign in front of this

8 years agoyes and it is asking to write the answer in interval notation

8 years agoand I dont see how you can simplify it further

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

8 years agoYes

8 years agoakiroso is that the range or domain?

8 years agoprodgers2, it's neither, this is not your problem.

8 years agookkie dookie

8 years agoTHANKS ANDRAS!!! XD

8 years ago