(高咐x-1)^2(x+1)^3(2-x)/x+4>0(x-1)^2(x+1)^2(x+1)(2-x)/x+4>0∵(x-1)^2≥0(x+1)^2≥0∴(x+1)(2-戚链纯x)(x+4)>0∴x∈(-∞,-4)∪唤清(-1,2)
x>4