若"x2-x>2"是"x-a
问题描述:
若"x2-x>2"是"x-a
答
x2-x>2
(x+1)(x-2)>0
x>2或x
2"是"x-a" /> 2"是"x-a - 作业答案大全" />
若"x2-x>2"是"x-a
x2-x>2
(x+1)(x-2)>0
x>2或x