(5a-7b)3+(7b-9c)3+(9c-5a)3
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Answer:
5a - 7b + 21b - 27c + 27c - 15 a * 3
= 5a - 7b + 21b - 27 c + 27c - 45a
= -40a +14 b
sanchita143:
i am sorry the answer is wrong cause all the 3 ' s are the cubes
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