求(a8+b8)(a4+b4)(a2+b2)(a+b)(a-b)
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求(a8+b8)(a4+b4)(a2+b2)(a+b)(a-b)
![求(a8+b8)(a4+b4)(a2+b2)(a+b)(a-b)](/uploads/image/z/15914824-16-4.jpg?t=%E6%B1%82%28a8%2Bb8%29%28a4%2Bb4%29%28a2%2Bb2%29%28a%2Bb%29%28a-b%29)
(a8+b8)(a4+b4)(a2+b2)(a+b)(a-b)
=(a8+b8)(a4+b4)(a2+b2)(a2-b2)
=(a8+b8)(a4+b4)(a4-b4)
=(a8+b8)(a8-b8)
=a16-b16
=(a8+b8)(a4+b4)(a2+b2)(a2-b2)
=(a8+b8)(a4+b4)(a4-b4)
=(a8+b8)(a8-b8)
=a16-b16
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