SOLUTION: V=4π/3(ał-bł) How to solve this question? I really need help with this.

Algebra ->  Equations -> SOLUTION: V=4π/3(ał-bł) How to solve this question? I really need help with this.      Log On


   

Question 873218: V=4π/3(ał-bł)
How to solve this question? I really need help with this.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Solving for a,
V=%284%2F3%29pi%28a%5E3-b%5E3%29
V=%284%2F3%29pi%2Aa%5E3-%284%2F3%29pi%2Ab%5E3
V%2B%284%2F3%29pi%2Ab%5E3=%284%2F3%29pi%2Aa%5E3
a%5E3=%283V%29%2F%284%2Api%29%2Bb%5E3
a=%28%283V%29%2F%284%2Api%29%2Bb%5E3%29%5E%281%2F3%29
Similarly solving for b,
V-%284%2F3%29pi%2Aa%5E3=%284%2F3%29pi%2Ab%5E3
b%5E3=a%5E3-%283V%29%2F%284%2Api%29
b=%28a%5E3-%283V%29%2F%284%2Api%29%29%5E%281%2F3%29