Answers

2014-06-29T17:12:41+08:00
the formula is ..
*cube of 1st , 2nd and 3rd term
*twice the product of the 1st and second term 
*twice the product of the 1st and 3rd term
*twice the product of the 2nd and 3rd term 

the answer is
9x^3 + 729y^3-512w^3+54xy-48xw-144yw :)

1 5 1
you're welcome
WHAT IS THE ANSWER OF (7W^3-15^2)^3
343w^9-3375^6-2205w^6-4725^4