题目内容
(a8-b8)÷(a4+b4)÷(a2+b2)
(a8-b8)÷(a4+b4)÷(a2+b2)
=(a-b)(a+b)(a2+b2)(a4+b4)÷(a4+b4)÷(a2+b2)
=(a-b)(a+b)
=(a-b)(a+b)(a2+b2)(a4+b4)÷(a4+b4)÷(a2+b2)
=(a-b)(a+b)
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计算(a﹣b)(a+b)(a2+b2)(a4﹣b4)的结果是( )
| A.a8+2a4b4+b8 | B.a8﹣2a4b4+b8 | C.a8+b8 | D.a8﹣b8 |