如果3x-y-1的绝对值与根号2x+y-4互为相反数,求x+4y的算术平方根?我星期一要教的,thanks!还有一题:若a的平方=4且a的绝对值=-a,求根号5-2a的值?
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/02 11:50:15
![如果3x-y-1的绝对值与根号2x+y-4互为相反数,求x+4y的算术平方根?我星期一要教的,thanks!还有一题:若a的平方=4且a的绝对值=-a,求根号5-2a的值?](/uploads/image/z/184554-18-4.jpg?t=%E5%A6%82%E6%9E%9C3x-y-1%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%E4%B8%8E%E6%A0%B9%E5%8F%B72x%2By-4%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2C%E6%B1%82x%2B4y%E7%9A%84%E7%AE%97%E6%9C%AF%E5%B9%B3%E6%96%B9%E6%A0%B9%3F%E6%88%91%E6%98%9F%E6%9C%9F%E4%B8%80%E8%A6%81%E6%95%99%E7%9A%84%2Cthanks%21%E8%BF%98%E6%9C%89%E4%B8%80%E9%A2%98%EF%BC%9A%E8%8B%A5a%E7%9A%84%E5%B9%B3%E6%96%B9%3D4%E4%B8%94a%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%3D-a%2C%E6%B1%82%E6%A0%B9%E5%8F%B75-2a%E7%9A%84%E5%80%BC%3F)
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