来自田一鸣的问题
(-2x²-x+3)(x+1)²/(x²-5x+6)≤0解不等式
(-2x²-x+3)(x+1)²/(x²-5x+6)≤0解不等式
1回答
2020-02-16 12:57
(-2x²-x+3)(x+1)²/(x²-5x+6)≤0解不等式
(-2x²-x+3)(x+1)²/(x²-5x+6)≤0解不等式
(-2x²-x+3)(x+1)²/(x²-5x+6)≤0
(2x^2+x-3)(x+1)^2//(x^2-5x+6)>=0
(x-1)(2x+3)(x+1)^2/(x-2)(x-3)>=0
穿根法
-------(-3/2)----(-1)---------(1)-------(2)------(3)---->
+--+-+
不等式解集为
{x|x