已知m满足(5m-2016)²+(2015-5m)²=5,那么(2016-5m)(2015-5m)的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/25 20:43:05
![已知m满足(5m-2016)²+(2015-5m)²=5,那么(2016-5m)(2015-5m)的值](/uploads/image/z/1669796-44-6.jpg?t=%E5%B7%B2%E7%9F%A5m%E6%BB%A1%E8%B6%B3%EF%BC%885m-2016%29%26%23178%3B%2B%EF%BC%882015-5m%EF%BC%89%26%23178%3B%3D5%2C%E9%82%A3%E4%B9%88%EF%BC%882016-5m%EF%BC%89%EF%BC%882015-5m%EF%BC%89%E7%9A%84%E5%80%BC)
已知m满足(5m-2016)²+(2015-5m)²=5,那么(2016-5m)(2015-5m)的值
已知m满足(5m-2016)²+(2015-5m)²=5,那么(2016-5m)(2015-5m)的值
已知m满足(5m-2016)²+(2015-5m)²=5,那么(2016-5m)(2015-5m)的值
设5m-2016=x,则2015-5m=-x-1
∴x^2+(-x-1)^2=5
∴x=1或x=-1
当x=1时,(2016-5m)(2015-5m)=1x(-2)=-2
当x=-1时,(2016-5m)(2015-5m)=(-1)x0=0