Mathematics · Algebra
Solve the following expression: (6.9)3 + (2.7)3 + (5.8)3 - 3 × 6.9 × 2.7 × 5.8(6.9)2 + (2.7)2 + (5.8)2 - (6.9)(2.7) - (2.7)(5.8) - (5.8)(6.9)
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