Mathematics · Algebraic Identities

The value of the following expression is: (9.1)2 - (10.9)2(9.1)3 - (10.9)3 × (9.1)2 + (9.1 × 10.9) + (10.9)2(7.9)2 + (7.9 × 2.1) + (2.1)2 × (7.9)3 - (2.1)3(7.9)2 - (2.1)2