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

7 years agothis is horrid...

7 years agoAgreed.

7 years agoare you talking about my question domian and range

7 years agoyou have not given a function there prodgers

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

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

7 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

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

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

7 years agoso is that the range or the donmain

7 years agoby the way is this for a limit?

7 years agoNope, no limit

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

7 years agoso the x^3 will cancel

7 years agoand the h too

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

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

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

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

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

7 years agoYes

7 years agoakiroso is that the range or domain?

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

7 years agookkie dookie

7 years agoTHANKS ANDRAS!!! XD

7 years ago