Odpowiedzi

2010-02-08T11:57:49+01:00
2x+1×-2×1-x = 3
x-2=3/+2
x=5
1 5 1
2010-02-08T12:16:22+01:00
I 2x+1 I -2 I 1- x I = 3
(-4x-2)(1-x)=3
4x+2x=3
6x=3
x=0.5