解不等式(x+1)²-2(x-1)≤4x

问题描述:

解不等式(x+1)²-2(x-1)≤4x
要有具体步骤,急

原方程可化为:x²+2x+1-2x+2≤4x,
x²-4x+3≤0,
(x-1)(x-3)≤0,
解之,得:1≤x≤3.