SOLUTION: Expanding Brackets when cubed eg (x - 5)3 Answer given is xcubed -15xsquared + 75x -125 How do I work this? I can do two brackets but having trouble with the three brackets. Thank

Question 135417: Expanding Brackets when cubed eg
(x - 5)3 Answer given is xcubed -15xsquared + 75x -125 How do I work this? I can do two brackets but having trouble with the three brackets. Thanks
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Expand:
Rewrite this as:
Now multiply the first two factors using the FOIL method.
= now multiply this by the third factor.
Simplify to get:

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