simplify: (3x-y)3 - (3x+y)3
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Answer:
6x + 0
Step-by-step explanation:
(3x-y)3 - (3x-y)3
= 9x - 3y - 3x + 3y
= 9x - 3x +3y- 3y
= 6x + 0 (A)
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