Answers

2016-06-22T21:17:39+08:00
By applying the special product rules and distributive property
or by using shorcut ways: 
a. Find the cube of each term to get the first and last terms
b. the second term is three times the product of the square of the first term and the second term
c. the third term is three times the product of the first term and the square of the second term.
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