> 数学 >
计算:(x+y分之3a的立方)的立方乘以(x的平方-y的平方)除以(y+x分之y-x)的2次方
人气:118 ℃ 时间:2019-08-20 17:02:39
解答
[3a^3/(x+y)]^3*(x^2-y^2)/[(y-x)/(x+y)]^2
=27a^9/(x+y)^3*(x+y)*(x-y)*(x+y)^2/(x-y)^2
=27a^9/(x-y)
推荐
猜你喜欢
© 2024 79432.Com All Rights Reserved.
电脑版|手机版