作业帮(1)(a³/3xy²)²÷(-ay/2x²)³；（2）y/(x²-xy)+xy/(2x-2y)(3)x/(x+2)- 2x-1/(x²+4x+4)（4）[x+2/(x²-2x)-x-1/(x²-4x+4)]÷4-x/x；（5）[a+2/(a²-2a)-a-1/(a²-4a+4)]×a-2/a÷4-a/a²；（6）x+3y/(
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![(1)(a³/3xy²)²÷(-ay/2x²)³；（2）y/(x²-xy)+xy/(2x-2y)(3)x/(x+2)- 2x-1/(x²+4x+4)（4）[x+2/(x²-2x)-x-1/(x²-4x+4)]÷4-x/x；（5）[a+2/(a²-2a)-a-1/(a²-4a+4)]×a-2/a÷4-a/a²；（6）x+3y/(](/uploads/image/z/5265880-16-0.jpg?t=%281%29%28a%26%23179%3B%2F3xy%26%23178%3B%29%26%23178%3B%C3%B7%28-ay%2F2x%26%23178%3B%29%26%23179%3B%EF%BC%9B%EF%BC%882%EF%BC%89y%2F%28x%26%23178%3B-xy%29%2Bxy%2F%282x-2y%29%283%29x%2F%28x%2B2%29-+2x-1%2F%28x%26%23178%3B%2B4x%2B4%29%EF%BC%884%EF%BC%89%5Bx%2B2%2F%28x%26%23178%3B-2x%29-x-1%2F%28x%26%23178%3B-4x%2B4%29%5D%C3%B74-x%2Fx%EF%BC%9B%EF%BC%885%EF%BC%89%5Ba%2B2%2F%28a%26%23178%3B-2a%29-a-1%2F%28a%26%23178%3B-4a%2B4%29%5D%C3%97a-2%2Fa%C3%B74-a%2Fa%26%23178%3B%EF%BC%9B%EF%BC%886%EF%BC%89x%2B3y%2F%28)
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(1)(a³/3xy²)²÷(-ay/2x²)³；（2）y/(x²-xy)+xy/(2x-2y)(3)x/(x+2)- 2x-1/(x²+4x+4)（4）[x+2/(x²-2x)-x-1/(x²-4x+4)]÷4-x/x；（5）[a+2/(a²-2a)-a-1/(a²-4a+4)]×a-2/a÷4-a/a²；（6）x+3y/(
(1)(a³/3xy²)²÷(-ay/2x²)³；（2）y/(x²-xy)+xy/(2x-2y)
(3)x/(x+2)- 2x-1/(x²+4x+4)（4）[x+2/(x²-2x)-x-1/(x²-4x+4)]÷4-x/x；（5）[a+2/(a²-2a)-a-1/(a²-4a+4)]×a-2/a÷4-a/a²；（6）x+3y/(x²-y²)-x+2y/(x²-y²)+2x-3y/(x²-y²)；
求完整的解!
(1)(a³/3xy²)²÷(-ay/2x²)³；（2）y/(x²-xy)+xy/(2x-2y)(3)x/(x+2)- 2x-1/(x²+4x+4)（4）[x+2/(x²-2x)-x-1/(x²-4x+4)]÷4-x/x；（5）[a+2/(a²-2a)-a-1/(a²-4a+4)]×a-2/a÷4-a/a²；（6）x+3y/(
（1）-8a^3x^4/9y^7
（2）（2y+x^2y）/（2x^2-2xy）
（3）（x^2+1）/（x^2+4x+4）
（4）-1/（x^2-4x+4）
（5）1/（2-a）
（6）2/（x+y）
加减时,先通分,分之相加减.除以时,乘以倒数.