a,b,c满足:(1)1/3(a—5)²+5丨c丨=0,(2)—2x²y²是同类项,求(2a²—3ab+6b²)—(3a²—abc+9b²—4c²)的值. 快一点,要过程
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![a,b,c满足:(1)1/3(a—5)²+5丨c丨=0,(2)—2x²y²是同类项,求(2a²—3ab+6b²)—(3a²—abc+9b²—4c²)的值. 快一点,要过程](/uploads/image/z/10770843-3-3.jpg?t=a%2Cb%2Cc%E6%BB%A1%E8%B6%B3%3A%281%291%2F3%28a%E2%80%945%29%26%23178%3B%2B5%E4%B8%A8c%E4%B8%A8%3D0%2C%282%29%E2%80%942x%26%23178%3By%26%23178%3B%E6%98%AF%E5%90%8C%E7%B1%BB%E9%A1%B9%2C%E6%B1%82%282a%26%23178%3B%E2%80%943ab%2B6b%26%23178%3B%EF%BC%89%E2%80%94%EF%BC%883a%26%23178%3B%E2%80%94abc%2B9b%26%23178%3B%E2%80%944c%26%23178%3B%EF%BC%89%E7%9A%84%E5%80%BC.++%E5%BF%AB%E4%B8%80%E7%82%B9%2C%E8%A6%81%E8%BF%87%E7%A8%8B)
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/31 11:19:23