作业帮若代数式—(x-2)²-1的最大值为a,则代数式4a-[-a²-(2a-1)]的值为?
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/16 17:03:17
![若代数式—(x-2)²-1的最大值为a,则代数式4a-[-a²-(2a-1)]的值为?](/uploads/image/z/3756586-58-6.jpg?t=%E8%8B%A5%E4%BB%A3%E6%95%B0%E5%BC%8F%E2%80%94%28x-2%29%26%23178%3B-1%E7%9A%84%E6%9C%80%E5%A4%A7%E5%80%BC%E4%B8%BAa%2C%E5%88%99%E4%BB%A3%E6%95%B0%E5%BC%8F4a-%5B-a%26%23178%3B-%282a-1%29%5D%E7%9A%84%E5%80%BC%E4%B8%BA%3F)
若代数式—(x-2)²-1的最大值为a,则代数式4a-[-a²-(2a-1)]的值为?
若代数式—(x-2)²-1的最大值为a,则代数式4a-[-a²-(2a-1)]的值为?
若代数式—(x-2)²-1的最大值为a,则代数式4a-[-a²-(2a-1)]的值为?
当x=2时
代数值最大a=-1
4a-[-a²-(2a-1)]
=-4-[-1-(-2-1)]
=-4-(-1+3)
=-4-2
=-6