(-2x²-x+3)(x+1)²/(x²-5x+6)≤0解不等式
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(-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