Odpowiedzi

2010-04-14T21:05:22+02:00
X-3...*3...-2x...+12 = 18 /-12 x*2...+1...*3...-5x=15
x-3...*3...-2x...=6 1...*3...-3x =15
-3...*3...-x=6 / :3 3...*...-3x = 15 /:3
-1...*... - x =2 ... - x = 15
-1...*...-2 = x 20-5=15 x=5
-1*...*...-2 =5
-1 * ...*...= 3
-1* (-3) * 1 = 3