一、1.解不等式
(1)2x^2-x>0
x(2x-1)>0
x>1/2或x5或x0
x>4/3或x0;
(x+4)(x-1)>0
x>1或x0;
(2x+1)(x+3)>0
x>-1/2或x0;
3x>3
x>1
(12)-6x^2-x+2≤0
6x^2+x-2≤0
(2x-1)(3x+2)
一、1.解不等式
(1)2x^2-x>0
x(2x-1)>0
x>1/2或x5或x0
x>4/3或x0;
(x+4)(x-1)>0
x>1或x0;
(2x+1)(x+3)>0
x>-1/2或x0;
3x>3
x>1
(12)-6x^2-x+2≤0
6x^2+x-2≤0
(2x-1)(3x+2)