2a²b(-五分之二a²b³+5ab²)-3a²b(-三分之一b)×5ab²=(2)、(-x³)的4次方×(-x²)的5次方-2【(-x的4次方)³÷(-x的5次方)²】-(-a的4次方×a²)的4次方=
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![2a²b(-五分之二a²b³+5ab²)-3a²b(-三分之一b)×5ab²=(2)、(-x³)的4次方×(-x²)的5次方-2【(-x的4次方)³÷(-x的5次方)²】-(-a的4次方×a²)的4次方=](/uploads/image/z/3021297-33-7.jpg?t=2a%26%23178%3Bb%EF%BC%88-%E4%BA%94%E5%88%86%E4%B9%8B%E4%BA%8Ca%26%23178%3Bb%26%23179%3B%2B5ab%26%23178%3B%EF%BC%89-3a%26%23178%3Bb%EF%BC%88-%E4%B8%89%E5%88%86%E4%B9%8B%E4%B8%80b%29%C3%975ab%26%23178%3B%3D%EF%BC%882%EF%BC%89%E3%80%81%EF%BC%88-x%26%23179%3B%EF%BC%89%E7%9A%844%E6%AC%A1%E6%96%B9%C3%97%EF%BC%88-x%26%23178%3B%EF%BC%89%E7%9A%845%E6%AC%A1%E6%96%B9-2%E3%80%90%EF%BC%88-x%E7%9A%844%E6%AC%A1%E6%96%B9%EF%BC%89%26%23179%3B%C3%B7%EF%BC%88-x%E7%9A%845%E6%AC%A1%E6%96%B9%EF%BC%89%26%23178%3B%E3%80%91-%EF%BC%88-a%E7%9A%844%E6%AC%A1%E6%96%B9%C3%97a%26%23178%3B%EF%BC%89%E7%9A%844%E6%AC%A1%E6%96%B9%3D)
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2a²b(-五分之二a²b³+5ab²)-3a²b(-三分之一b)×5ab²=(2)、(-x³)的4次方×(-x²)的5次方-2【(-x的4次方)³÷(-x的5次方)²】-(-a的4次方×a²)的4次方=
2a²b(-五分之二a²b³+5ab²)-3a²b(-三分之一b)×5ab²=
(2)、(-x³)的4次方×(-x²)的5次方-2【(-x的4次方)³÷(-x的5次方)²】-(-a的4次方×a²)的4次方=
不要用:^这种符号
2a²b(-五分之二a²b³+5ab²)-3a²b(-三分之一b)×5ab²=(2)、(-x³)的4次方×(-x²)的5次方-2【(-x的4次方)³÷(-x的5次方)²】-(-a的4次方×a²)的4次方=
(2)