Odpowiedzi

2010-03-29T20:37:27+02:00
A)2(3 - x) -3( x - 1) >0
6 -2x -3x +3 >0
-2x -3x >0-6-3
-5x > -9 |:(-5)
x < 1,8

b) 2(3 - x) -3( x - 1)<7(1 - x ) - ( 2x - 2)
6 - 2x -3x +3 < 7 -7x - 2x +2
-2x-3x+7x+2x <7 + 2 -6 - 3
4x < 0 |:4
x <0
2010-03-29T20:38:29+02:00


2(3 - x) -3( x - 1)<7(1 - x ) - ( 2x - 2)
6 - 2x -3x +3 < 7 -7x - 2x +2
-2x-3x+7x+2x <7 + 2 -6 - 3
4x < 0 |:4
x <0