Решите неравенства
1)(2x+3)(x-1)<0
2)x(4-x)(x+1)≥0
3)(3x-2)(x+3)>0
2x+3*x-1= 2x*x=3-1= 2x=2; x=1; x>0
2)4x-2x*x+1=2x=x+1; 2x=1; x=2;
3)3x-2*x+3=3x-2x+3; x=3
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Answers & Comments
1)(2x+3)(x-1)<0
2x+3*x-1= 2x*x=3-1= 2x=2; x=1; x>0
2)4x-2x*x+1=2x=x+1; 2x=1; x=2;
3)3x-2*x+3=3x-2x+3; x=3