合并同类项:5(a-b)d²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)应该是5(a-b)²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/21 04:54:47
![合并同类项:5(a-b)d²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)应该是5(a-b)²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)](/uploads/image/z/13979741-5-1.jpg?t=%E5%90%88%E5%B9%B6%E5%90%8C%E7%B1%BB%E9%A1%B9%EF%BC%9A5%EF%BC%88a-b%EF%BC%89d%26%23178%3B-3%EF%BC%88a-b%EF%BC%89%26%23178%3B-7%EF%BC%88a-b%EF%BC%89-%EF%BC%88a-b%EF%BC%89%26%23178%3B%2B7%EF%BC%88a-b%EF%BC%89%E5%BA%94%E8%AF%A5%E6%98%AF5%EF%BC%88a-b%EF%BC%89%26%23178%3B-3%EF%BC%88a-b%EF%BC%89%26%23178%3B-7%EF%BC%88a-b%EF%BC%89-%EF%BC%88a-b%EF%BC%89%26%23178%3B%2B7%EF%BC%88a-b%EF%BC%89)
合并同类项:5(a-b)d²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)应该是5(a-b)²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)
合并同类项:5(a-b)d²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)
应该是5(a-b)²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)
合并同类项:5(a-b)d²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)应该是5(a-b)²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)
5(a-b)²-3(a-b)²-7(a-b)-(a-b)²+7(a-b)
=(a-b)²
j
a²-2ab+b² 打错了吧..没有那个d²的吧.
aa-2ab+bb