SOLUTION: im not able to understand this sum factorize a^3

SOLUTION: im not able to understand this sum factorize a^3 - 2^ 2b^3. thanks

Question 154122: im not able to understand this sum factorize a^3 - 2^ 2b^3. thanks
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
im not able to understand this sum factorize a^3 - 2^ 2b^3. thanks
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The expression is not clear. Add some parentheses to clarify it.