> 数学 >
(a8-b8)÷(a4+b4)÷(a2+b2
人气:190 ℃ 时间:2020-05-04 18:49:47
解答
(a8-b8)÷(a4+b4)÷(a2+b2
=(a-b)(a+b)(a2+b2)(a4+b4)÷(a4+b4)÷(a2+b2
=(a-b)(a+b)
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版