作业帮计算：1、(-3分之1a³b²)²(-2ab²)³÷(-9分之1a的4次方b的4次方)²计算：2、[(x+y)²-(x+y)(x-y)]÷2y
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![计算：1、(-3分之1a³b²)²(-2ab²)³÷(-9分之1a的4次方b的4次方)²计算：2、[(x+y)²-(x+y)(x-y)]÷2y](/uploads/image/z/188078-14-8.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A1%E3%80%81%28-3%E5%88%86%E4%B9%8B1a%26%23179%3Bb%26%23178%3B%29%26%23178%3B%28-2ab%26%23178%3B%29%26%23179%3B%C3%B7%28-9%E5%88%86%E4%B9%8B1a%E7%9A%844%E6%AC%A1%E6%96%B9b%E7%9A%844%E6%AC%A1%E6%96%B9%29%26%23178%3B%E8%AE%A1%E7%AE%97%EF%BC%9A2%E3%80%81%5B%28x%2By%29%26%23178%3B-%28x%2By%29%28x-y%29%5D%C3%B72y)
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计算：1、(-3分之1a³b²)²(-2ab²)³÷(-9分之1a的4次方b的4次方)²计算：2、[(x+y)²-(x+y)(x-y)]÷2y
计算：1、(-3分之1a³b²)²(-2ab²)³÷(-9分之1a的4次方b的4次方)²
计算：2、[(x+y)²-(x+y)(x-y)]÷2y
计算：1、(-3分之1a³b²)²(-2ab²)³÷(-9分之1a的4次方b的4次方)²计算：2、[(x+y)²-(x+y)(x-y)]÷2y
=1/9 a的6次方b的4次方 ×(-8a³b的6次方)÷(1/81a的8次方b的8次方)
=-72ab²
2、[(x+y)²-(x+y)(x-y)]÷2y
=(x+y)(x+y-x+y)÷2y
=2y(x+y)÷2y
=x+y