1. (1)試將a3+b3+c3-3abc 因式分解。

(Translation) 2. Translate the following passage into Chinese. (5%) The origin of decoupage is thought to be East Siberian tomb art. Nomadic tribes used cut out felts to decorate the tombs of their deceased. From Siberia, the practice came to China, and by the 12th century, cut out paper was being used to decorate lanterns, windows, boxes and other objects. In the 17th century, Italy, especially Venice, was at the forefront of trade with the Far East and it is generally thought that it is through these trade links that the cut out paper decorations made their way into Europe.

1. (1)試將a³+b³+c³-3abc 因式分解。

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